Intestinal Research

Original Articles

One-year effectiveness and safety of ustekinumab treatment in patients with ulcerative colitis: an Asan-Crohn’s and Colitis Association in Daegu-Gyeongbuk (CCAiD) multicenter real-world cohort study: Ji Eun Baek, Min Kyu Kim, Eun Soo Kim, Kyeong Ok Kim, Hyeong Ho Jo, Sung Wook Hwang, Sang Hyoung Park, Byung Ik Jang, Eun Young Kim, Sung Kook Kim, Suk-Kyun Yang, Byong Duk Ye; Received October 12, 2025 Accepted December 30, 2025 Published online April 20, 2026; DOI: https://doi.org/10.5217/ir.2025.00258 [Epub ahead of print]

Abstract PDF Supplementary Material PubReader ePub: Background/Aims
This study aimed to evaluate the 1-year effectiveness and safety of ustekinumab (UST) in Korean patients with ulcerative colitis (UC).
Methods
We conducted a multicenter retrospective study of UC patients who received UST between January 2021 and October 2023. The primary endpoint was clinical remission at week (W) 8. Secondary endpoints included clinical remission at W16–20 and W52–56; corticosteroid-free clinical remission at W8, W16–20, and W52–56; clinical response at the same time points; endoscopic remission at W16–20 and W52–56; UST interval shortening and persistence through W52–56; and adverse events (AEs).
Results
Sixty patients were included. After excluding one patient in clinical remission at baseline, 49.2% (29/59) achieved clinical remission at W8. Clinical remission rates were 59.3% (35/59) at W16–20 and 55.9% (33/59) at W52–56. Endoscopic remission was achieved in 15.3% (9/59) at W16–20 and 11.9% (7/59) at W52–56. The 12-month UST persistence rate was 84.9%. Multivariable analysis identified factors associated with clinical remission at W52–56: higher body mass index at baseline (adjusted odds ratio [aOR], 1.26; 95% confidence interval [CI], 1.00–1.57; P< 0.05), concomitant immunomodulator use (aOR, 4.69; 95% CI, 1.04–21.06; P= 0.04), and endoscopic improvement at W16–20 (aOR, 13.47; 95% CI, 2.87–63.30; P< 0.01), while prior exposure to advanced therapies was associated with lower remission (aOR, 0.20; 95% CI, 0.04–0.98; P< 0.05). AEs occurred in 24 patients (40.0%), with 1 serious AE (1.7%).
Conclusions
UST showed favorable 1-year effectiveness and an acceptable safety profile in Korean patients with UC.

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Colorectal neoplasia

A survey of current practices in post-polypectomy surveillance in Korea: Jeongseok Kim, Tae-Geun Gweon, Min Seob Kwak, Su Young Kim, Seong Jung Kim, Hyun Gun Kim, Eun Ran Kim, Sung Noh Hong, Eun Sun Kim, Chang Mo Moon, Dae Seong Myung, Dong Hoon Baek, Shin Ju Oh, Hyun Jung Lee, Ji Young Lee, Yunho Jung, Jaeyoung Chun, Dong-Hoon Yang, on behalf of the Intestinal Tumor Research Group of the Korean Association for the Study of Intestinal Diseases (KASID); Intest Res 2024;22(2):186-207. Published online April 25, 2024; DOI: https://doi.org/10.5217/ir.2023.00109

Abstract PDF Supplementary Material PubReader ePub

Background/Aims
We investigated the clinical practice patterns of post-polypectomy colonoscopic surveillance among Korean endoscopists.
Methods
In a web-based survey conducted between September and November 2021, participants were asked about their preferred surveillance intervals and the patient age at which surveillance was discontinued. Adherence to the recent guidelines of the U.S. Multi-Society Task Force on Colorectal Cancer (USMSTF) was also analyzed.
Results
In total, 196 endoscopists completed the survey. The most preferred first surveillance intervals were: a 5-year interval after the removal of 1–2 tubular adenomas < 10 mm; a 3-year interval after the removal of 3–10 tubular adenomas < 10 mm, adenomas ≥ 10 mm, tubulovillous or villous adenomas, ≤ 20 hyperplastic polyps < 10 mm, 1–4 sessile serrated lesions (SSLs) < 10 mm, hyperplastic polyps or SSLs ≥ 10 mm, and traditional serrated adenomas; and a 1-year interval after the removal of adenomas with highgrade dysplasia, >10 adenomas, 5–10 SSLs, and SSLs with dysplasia. In piecemeal resections of large polyps ( > 20 mm), surveillance colonoscopy was mostly preferred after 1 year for adenomas and 6 months for SSLs. The mean USMSTF guideline adherence rate was 30.7%. The largest proportion of respondents (40.8%–55.1%) discontinued the surveillance at the patient age of 80–84 years.
Conclusions
A significant discrepancy was observed between the preferred post-polypectomy surveillance intervals and recent international guidelines. Individualized measures are required to increase adherence to the guidelines.

Citations

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Chan Hyuk Park, Byung Wook Jung, Yoon Suk Jung
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Tae-Woo Kim, Soo-Young Na
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Munenori Honda, Ryosuke Gushima, Kotaro Waki, Kenshi Matsuno, Yoki Furuta, Hideaki Miyamoto, Katsuya Nagaoka, Hideaki Naoe, Yasuhito Tanaka
Journal of Gastroenterology and Hepatology.2025; 40(12): 2944. CrossRef

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Review

Cancer

Korean Guidelines for Postpolypectomy Colonoscopic Surveillance: 2022 revised edition: Su Young Kim, Min Seob Kwak, Soon Man Yoon, Yunho Jung, Jong Wook Kim, Sun-Jin Boo, Eun Hye Oh, Seong Ran Jeon, Seung-Joo Nam, Seon-Young Park, Soo-Kyung Park, Jaeyoung Chun, Dong Hoon Baek, Mi-Young Choi, Suyeon Park, Jeong-Sik Byeon, Hyung Kil Kim, Joo Young Cho, Moon Sung Lee, Oh Young Lee, Korean Society of Gastrointestinal Endoscopy, Korean Society of Gastroenterology, Korean Association for the Study of Intestinal Diseases; Intest Res 2023;21(1):20-42. Published online January 31, 2023; DOI: https://doi.org/10.5217/ir.2022.00096

Abstract PDF Supplementary Material PubReader ePub

Colonoscopic polypectomy is effective in decreasing the incidence and mortality of colorectal cancer (CRC). Premalignant polyps discovered during colonoscopy are associated with the risk of metachronous advanced neoplasia. Postpolypectomy surveillance is the most important method for managing advanced metachronous neoplasia. A more efficient and evidence-based guideline for postpolypectomy surveillance is required because of the limited medical resources and concerns regarding colonoscopy complications. In these consensus guidelines, an analytic approach was used to address all reliable evidence to interpret the predictors of CRC or advanced neoplasia during surveillance colonoscopy. The key recommendations state that the high-risk findings for metachronous CRC following polypectomy are as follows: adenoma ≥10 mm in size; 3 to 5 (or more) adenomas; tubulovillous or villous adenoma; adenoma containing high-grade dysplasia; traditional serrated adenoma; sessile serrated lesion containing any grade of dysplasia; serrated polyp of at least 10 mm in size; and 3 to 5 (or more) sessile serrated lesions. More studies are needed to fully comprehend the patients who are most likely to benefit from surveillance colonoscopy and the ideal surveillance interval to prevent metachronous CRC.

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Chan Hyuk Park, Byung Wook Jung, Yoon Suk Jung
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Demographic and Clinicopathologic Factors Associated With Colorectal Adenoma Recurrence
Usman Ayub Awan, Qingyuan Song, Kristen K. Ciombor, Adetunji T. Toriola, Jungyoon Choi, Timothy Su, Xiao-ou Shu, Kamran Idrees, Kay M. Washington, Wei Zheng, Wanqing Wen, Zhijun Yin, Xingyi Guo
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Soo-Kyung Park, Seong Ran Jeon, Dong-Hoon Yang, Jaeyoung Chun, Jae Myung Cha
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Re-evaluating post-polypectomy surveillance: The role of non-invasive modalities in colorectal cancer prevention
Ethna McFerran, Damian McKay, Maurice B. Loughrey, Mark Lawler, Stephen T. McSorley
Best Practice & Research Clinical Gastroenterology.2026; 80: 102092. CrossRef
Survey of the Actual Practices Used for Endoscopic Removal of Colon Polyps in Korea: A Comparison with the Current Guidelines
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Jin-Dong Wang, Guo-Shuai Xu, Xin-Long Hu, Wen-Qiang Li, Nan Yao, Fu-Zhou Han, Yin Zhang, Jun Qu
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Su Young Kim
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Clinical characteristics and risk factors related to polyposis recurrence and advanced neoplasm development among patients with non-hereditary colorectal polyposis
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Original Articles

Microbiota

Compositional changes in fecal microbiota associated with clinical phenotypes and prognosis in Korean patients with inflammatory bowel disease: Seung Yong Shin, Young Kim, Won-Seok Kim, Jung Min Moon, Kang-Moon Lee, Sung-Ae Jung, Hyesook Park, Eun Young Huh, Byung Chang Kim, Soo Chan Lee, Chang Hwan Choi, on behalf of the IBD Research Group of the Korean Association for the Study of Intestinal Diseases; Intest Res 2023;21(1):148-160. Published online June 14, 2022; DOI: https://doi.org/10.5217/ir.2021.00168

Abstract PDF Supplementary Material PubReader ePub

Background/Aims
The fecal microbiota of Korean patients with inflammatory bowel disease (IBD) was investigated with respect to disease phenotypes and taxonomic biomarkers for diagnosis and prognosis of IBD.
Methods
Fecal samples from 70 ulcerative colitis (UC) patients, 39 Crohn’s disease (CD) patients, and 100 healthy control individuals (HC) were collected. The fecal samples were amplified via polymerase chain reaction and sequenced using Illumina MiSeq. The relationships between fecal bacteria and clinical phenotypes were analyzed using the EzBioCloud database and 16S microbiome pipeline.
Results
The alpha-diversity of fecal bacteria was significantly lower in UC and CD (P<0.05) compared to that in HC. Bacterial community compositions in UC and CD were significantly different from that of HC according to Bray-Curtis dissimilarities, and there was also a difference between community composition in UC and CD (P=0.01). In UC, alpha-diversity was further decreased when the disease was more severe and the extent of disease was greater, and community composition significantly differed depending on the extent of the disease. We identified 9 biomarkers of severity and 6 biomarkers of the extent of UC. We also identified 5 biomarkers of active disease and 3 biomarkers of ileocolonic involvement in CD. Lachnospiraceae and Ruminococcus gnavus were biomarkers for better prognosis in CD.
Conclusions
The fecal microbiota profiles of IBD patients were different from those of HC, and several bacterial taxa may be used as biomarkers to determine disease phenotypes and prognosis. These data may also help discover new therapeutic targets for IBD.

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Dynamic changes in the gut microbiota composition during adalimumab therapy in patients with ulcerative colitis: implications for treatment response prediction and therapeutic targets
Han Na Oh, Seung Yong Shin, Jong-Hwa Kim, Jihye Baek, Hyo Jong Kim, Kang-Moon Lee, Soo Jung Park, Seok-Young Kim, Hyung-Kyoon Choi, Wonyong Kim, Woo Jun Sul, Chang Hwan Choi
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IBD

Clinical outcomes and predictors of response for adalimumab in patients with moderately to severely active ulcerative colitis: a KASID prospective multicenter cohort study: Seung Yong Shin, Soo Jung Park, Young Kim, Jong Pil Im, Hyo Jong Kim, Kang-Moon Lee, Ji Won Kim, Sung-Ae Jung, Jun Lee, Sang-Bum Kang, Sung Jae Shin, Eun Sun Kim, You Sun Kim, Tae Oh Kim, Hyun-Soo Kim, Dong Il Park, Hyung Kil Kim, Eun Soo Kim, Young-Ho Kim, Do Hyun Kim, Dennis Teng, Jong-Hwa Kim, Wonyong Kim, Chang Hwan Choi, on behalf of the IBD Research Group of the Korean Association for the Study of Intestinal Diseases; Intest Res 2022;20(3):350-360. Published online July 23, 2021; DOI: https://doi.org/10.5217/ir.2021.00049

Abstract PDF Supplementary Material PubReader ePub

Background/Aims
This study assessed the efficacy and safety of adalimumab (ADA) and explored predictors of response in Korean patients with ulcerative colitis (UC).
Methods
A prospective, observational, multicenter study was conducted over 56 weeks in adult patients with moderately to severely active UC who received ADA. Clinical response, remission, and mucosal healing were assessed using the Mayo score.
Results
A total of 146 patients were enrolled from 17 academic hospitals. Clinical response rates were 52.1% and 37.7% and clinical remission rates were 24.0% and 22.0% at weeks 8 and 56, respectively. Mucosal healing rates were 39.0% and 30.1% at weeks 8 and 56, respectively. Prior use of anti-tumor necrosis factor-α (anti-TNF-α) did not affect clinical and endoscopic responses. The ADA drug level was significantly higher in patients with better outcomes at week 8 (P<0.05). In patients with lower endoscopic activity, higher body mass index, and higher serum albumin levels at baseline, the clinical response rate was higher at week 8. In patients with lower Mayo scores and C-reactive protein levels, clinical responses, and mucosal healing at week 8, the clinical response rate was higher at week 56. Serious adverse drug reactions were identified in 2.8% of patients.
Conclusions
ADA is effective and safe for induction and maintenance in Korean patients with UC, regardless of prior anti-TNF-α therapy. The ADA drug level is associated with the efficacy of induction therapy. Patients with better short-term outcomes were predictive of those with an improved long-term response.

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Changes in fecal metabolic and lipidomic features by anti-TNF treatment and prediction of clinical remission in patients with ulcerative colitis
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Sophie Vieujean, Edouard Louis
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Pharmacogenetics-based personalized treatment in patients with inflammatory bowel disease: A review
Ji Young Chang, Jae Hee Cheon
Precision and Future Medicine.2021; 5(4): 151. CrossRef

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Review

Inflammatory bowel diseases

Prevention and management of viral hepatitis in inflammatory bowel disease: a clinical practice guideline by the Korean Association for the Study of Intestinal Diseases: Soo-Kyung Park, Chang Hwan Choi, Jaeyoung Chun, Heeyoung Lee, Eun Sun Kim, Jae Jun Park, Chan Hyuk Park, Bo-In Lee, Yunho Jung, Dong-Il Park, Do Young Kim, Hana Park, Yoon Tae Jeen, IBD Research Group of the Korean Association for the Study of Intestinal Diseases; Intest Res 2020;18(1):18-33. Published online January 30, 2020; DOI: https://doi.org/10.5217/ir.2019.09155

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The treatment of inflammatory bowel disease (IBD) has been revolutionized for the last 10 years by the increasing use of immunomodulators and biologics. With immunosuppression of this kind, opportunistic infection is an important safety concern for patients with IBD. In particular, viral hepatitis is determined by the interaction between the virus and the host’s immunity, and the risk of reactivation increases if immunity is compromised by immunosuppression therapy. Parts of Asia, including Korea, still show intermediate endemicity for the hepatitis A virus and hepatitis B virus compared with the United States and Western Europe. Thus, members of IBD research group of the Korean Association for the Study of Intestinal Diseases have produced a guideline on the prevention and management of viral hepatitis in IBD.

Citations

Citations to this article as recorded by

Prevalence of viral hepatitis A and C in patients with inflammatory bowel disease: a nationwide population-based study in South Korea
Jin Hwa Park, Sang Hyoung Park, Sang Pyo Lee, Kang Nyeong Lee, Hang Lak Lee, Oh Young Lee, Soorack Ryu, Junwon Go
The Korean Journal of Internal Medicine.2026; 41(1): 95. CrossRef
Efficacy and safety of subcutaneous guselkumab in East Asian participants with moderately to severely active Crohn’s disease: subgroup analysis of the Phase 3 GRAVITI study
Wenjia Liu, Hong Guo, Tae Oh Kim, Ken Takeuchi, Tadakazu Hisamatsu, Jennifer Fable, Mobolaji Olurinde, Bryan Wahking, Keira Herr, Jianmin Zhuo, Qian Cao
Intestinal Research.2026;[Epub] CrossRef
Iranian Consensus Guideline for Pharmacotherapy with Biologics and Small Molecules Drugs in Adults with Inflammatory Bowel Diseases
Niloofar Khoshnam-Rad, Homayoon Vahedi, Anahita Sadeghi, Mansoor Rastegarpanah, Soha Namazi, Amir Anushiravani, Ali Reza Sima, Shabnam Shahrokh, Sudabeh Alatab, Reza Malekzadeh
Middle East Journal of Digestive Diseases.2023; 15(2): 83. CrossRef
Protective role of flavonoids quercetin and silymarin in the viral-associated inflammatory bowel disease: an updated review
Elham Zarenezhad, Hussein T. Abdulabbas, Ahmed Shayaa Kareem, Seyed Amin Kouhpayeh, Silvia Barbaresi, Sohrab Najafipour, Abdulbaset Mazarzaei, Mitra Sotoudeh, Abdolmajid Ghasemian
Archives of Microbiology.2023;[Epub] CrossRef
The impact of medication belief on adherence to infliximab in patients with Crohn’s disease
Shuyan Li, Yan Ma, Hongling Sun, Zijun Ni, Shurong Hu, Yan Chen, Meijuan Lan
Frontiers in Pharmacology.2023;[Epub] CrossRef
SARS-CoV-2 vaccination for adult patients with inflammatory bowel disease: expert consensus statement by KASID
Yoo Jin Lee, Seong-Eun Kim, Yong Eun Park, Ji Young Chang, Hyun Joo Song, Duk Hwan Kim, Young Joo Yang, Byung Chang Kim, Jae Gon Lee, Hee Chan Yang, Miyoung Choi, Seung-Jae Myung
Intestinal Research.2022; 20(2): 171. CrossRef
Clinical Course of Hepatitis B Viral Infection in Patients Undergoing Anti-Tumor Necrosis Factor α Therapy for Inflammatory Bowel Disease
Ji Min Lee, Shu-Chen Wei, Kang-Moon Lee, Byong Duk Ye, Ren Mao, Hyun-Soo Kim, Soo Jung Park, Sang Hyoung Park, Eun Hye Oh, Jong Pil Im, Byung Ik Jang, Dae Bum Kim, Ken Takeuchi
Gut and Liver.2022; 16(3): 396. CrossRef
Antiviral Prophylaxis Against Hepatitis B Virus in Patients Treated with Anti-Tumor Necrosis Factor α Agents for Inflammatory Bowel Disease
Eun Ae Kang, Jae Hee Cheon
Gut and Liver.2022; 16(4): 501. CrossRef
Risk of Hepatitis B Virus (HBV) Reactivation in Patients with Immune-Mediated Inflammatory Diseases Receiving Biologics: Focus on the Timing of Biologics after Anti-HBV Treatment
Soo Min Ahn, Jonggi Choi, Byong Duk Ye, Suk-Kyun Yang, Ji Seon Oh, Yong‑Gil Kim, Chang-Keun Lee, Bin Yoo, Sang Hyoung Park, Seokchan Hong
Gut and Liver.2022; 16(4): 567. CrossRef
Inflammatory bowel disease in Korea: epidemiology and pathophysiology
Jung Won Lee, Chang Soo Eun
The Korean Journal of Internal Medicine.2022; 37(5): 885. CrossRef
Viral Hepatitis in Patients with Inflammatory Bowel Disease
Seung Hwan Shin, Sang Hyoung Park
The Korean Journal of Gastroenterology.2022; 80(2): 51. CrossRef
Vaccination strategies for Korean patients with inflammatory bowel disease
Yoo Jin Lee, Eun Soo Kim
The Korean Journal of Internal Medicine.2022; 37(5): 920. CrossRef
Current Status of Opportunistic Infection in Inflammatory Bowel Disease Patients in Asia: A Questionnaire-Based Multicenter Study
Hong Yang, Zhihua Ran, Meng Jin, Jia-Ming Qian
Gut and Liver.2022; 16(5): 726. CrossRef
Do We Have an Opportunity to Avoid Opportunistic Infections in Asian Patients with Inflammatory Bowel Disease?
Suhyun Park, Sang Hyoung Park
Gut and Liver.2022; 16(5): 663. CrossRef
Natural history of inflammatory bowel disease: a comparison between the East and the West
Eun Mi Song, Suk-Kyun Yang
Intestinal Research.2022; 20(4): 418. CrossRef
Hepatobiliary Impairments in Patients with Inflammatory Bowel Diseases: The Current Approach
Vlad Alexandru Ionescu, Gina Gheorghe, Valentin Nicolae Varlas, Ana Maria Alexandra Stanescu, Camelia Cristina Diaconu
Gastroenterology Insights.2022; 14(1): 13. CrossRef
Viral infections in inflammatory bowel disease: Tips and tricks for correct management
Vincenzo Craviotto, Federica Furfaro, Laura Loy, Alessandra Zilli, Laurent Peyrin-Biroulet, Gionata Fiorino, Silvio Danese, Mariangela Allocca
World Journal of Gastroenterology.2021; 27(27): 4276. CrossRef
SARS-CoV-2 Vaccination for Adult Patients with Inflammatory Bowel Disease: Expert Consensus Statements by KASID
Yoo Jin Lee, Seong-Eun Kim, Yong Eun Park, Ji Young Chang, Hyun Joo Song, Duk Hwan Kim, Young Joo Yang, Byung Chang Kim, Jae Gon Lee, Hee Chan Yang, Miyoung Choi, Seung-Jae Myung
The Korean Journal of Gastroenterology.2021; 78(2): 117. CrossRef
Current status of inflammatory bowel diseases in Korea
Suk-Kyun Yang
Journal of the Korean Medical Association.2021; 64(9): 572. CrossRef
A clinical case of ulcerative colitis in a patient with viral hepatitis
E. D. Kosmachova, M. S. Iakovenko, K. A. Yumukian
South Russian Journal of Therapeutic Practice.2020; 1(3): 95. CrossRef

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Original Articles

Inflammatory bowel diseases

The prevalence of sarcopenia and its effect on prognosis in patients with Crohn’s disease: Chan Hyung Lee, Hyuk Yoon, Dong Jun Oh, Jae Min Lee, Yoon Jin Choi, Cheol Min Shin, Young Soo Park, Nayoung Kim, Dong Ho Lee, Joo Sung Kim; Intest Res 2020;18(1):79-84. Published online January 30, 2020; DOI: https://doi.org/10.5217/ir.2019.00107

Abstract PDF PubReader ePub

Background/Aims
Crohn’s disease is associated with altered body composition, such as low muscle mass, which can affect clinical outcomes. However, there are few studies regarding the effect of sarcopenia on prognosis of Crohn’s disease. In this study, we evaluated the body composition at the initial diagnosis of Crohn’s disease and analyzed the clinical meaning of sarcopenia.
Methods
We conducted a retrospective review of medical records of patients who were diagnosed as Crohn’s disease and underwent computed tomography within 3 months after diagnosis. Sarcopenia was defined as an L3 skeletal muscle index (SMI) of < 49 cm²/m² for men and < 31 cm²/m² for women. Outcomes such as need for hospitalization, surgery, use of steroids, immunomodulators and biologics were analyzed.
Results
A total of 79 patients (male, 73.4%; mean age, 29.9 years) were included and 40 patients (51%) were diagnosed as sarcopenia. C-reactive protein (CRP) level was correlated with sarcopenia (P= 0.044). Erythrocyte sedimentation rate (ESR) showed a tendency to decrease inversely with SMI (r = –0.320, P= 0.008) and hemoglobin and albumin tended to increase in proportion to SMI (hemoglobin: r = 0.271, P= 0.016 and albumin: r = 0.350, P= 0.002). However, there was no statistically significance in time-to-first-event analysis in aspects of sarcopenia.
Conclusions
Approximately 50% of patients with newly diagnosed as Crohn’s disease had sarcopenia. CRP levels were higher in the sarcopenia group and SMI correlated with ESR, hemoglobin, and albumin. However, none of prognostic values were demonstrated.

Citations

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Vikram Dharap, Devendra Desai, Philip Abraham, Tarun Gupta, Pavan Dhoble, Nirad Mehta, Jagdish Modhe
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Shilpa Sharma
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Pardhu B Neelam, Alka Sharma, Vishal Sharma
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Nandong Hu, Jingjing Liu, Xifa Gao, Hongye Tang, Jiangchuan Wang, Zicheng Wei, Zhongqiu Wang, Xiaoli Yu, Xiao Chen
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Hye Kyung Hyun, Hye Won Lee, Jihye Park, Soo Jung Park, Jae Jun Park, Tae Il Kim, Jae Seung Lee, Beom Kyung Kim, Jun Yong Park, Do Young Kim, Sang Hoon Ahn, Seung Up Kim, Jae Hee Cheon
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Giacomo Mulinacci, Lorena Pirola, Davide Gandola, Davide Ippolito, Chiara Viganò, Alice Laffusa, Camilla Gallo, Pietro Invernizzi, Silvio Danese, Sara Massironi
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IBD

The effect of vitamin D administration on inflammatory markers in patients with inflammatory bowel disease: Jae Chang Jun, Hyuk Yoon, Yoon Jin Choi, Cheol Min Shin, Young Soo Park, Nayoung Kim, Dong Ho Lee, Joo Sung Kim; Intest Res 2019;17(2):210-217. Published online November 27, 2018; DOI: https://doi.org/10.5217/ir.2018.00081

Abstract PDF PubReader ePub

Background/Aims
The exact relationship between vitamin D deficiency and inflammatory bowel disease (IBD) remains unclear. We evaluated the effect of vitamin D3 administration on inflammatory responses and disease severity in patients with IBD.
Methods
We investigated the serum 25-hydroxyvitamin D3 [25-(OH)D] and C-reactive protein (CRP) levels and the partial Mayo score (PMS) in patients with IBD. Vitamin D3 was administered in patients with either vitamin D deficiency or insufficiency and CRP serum vitamin D levels and PMS were re-examined at 6 months of administration.
Results
In 88 patients with Crohn’s disease (CD), a negative correlation was found between serum vitamin D and CRP. In 178 patients with ulcerative colitis (UC), serum vitamin D showed no association with CRP or PMS. Serum vitamin D increased from 11.08±3.63 to 22.69±6.11 ng/mL in 29 patients with CD and from 11.45±4.10 to 24.20±6.61 ng/mL in 41 patients with UC who received vitamin D3 treatment (P<0.001 and P<0.001, respectively). In patients with CD, median ΔCRP was –0.24 in the normalized vitamin D group and –0.11 in the non-normalized group (P=0.308). In patients with UC, median ΔCRP was −0.01 in the normalized vitamin D group and 0.06 in the non-normalized group (P=0.359).
Conclusions
Although a negative correlation was found between serum vitamin D and CRP levels in patients with CD, administration of vitamin D did not improve the CRP level in patients with CD. In patients with UC, serum vitamin D level was unrelated to CRP or PMS.

Citations

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Frontiers in Cellular and Infection Microbiology.2022;[Epub] CrossRef
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Nam Seok Ham, Sung Wook Hwang, Eun Hye Oh, Jeongseok Kim, Ho-Su Lee, Sang Hyoung Park, Dong-Hoon Yang, Byong Duk Ye, Jeong-Sik Byeon, Seung-Jae Myung, Suk-Kyun Yang
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Effects of a Single Oral Megadose of Vitamin D3 on Inflammation and Oxidative Stress Markers in Overweight and Obese Women: A Randomized, Double-Blind, Placebo-Controlled Clinical Trial
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Anna Zielińska, Aleksandra Sobolewska-Włodarczyk, Maria Wiśniewska-Jarosińska, Anita Gąsiorowska, Jakub Fichna, Maciej Sałaga
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Antonio María Caballero Mateos, Raúl Vicente Olmedo-Martín, Amparo Roa-Colomo, María del Mar Díaz Alcázar, Manuel Valenzuela Barranco
Revista Española de Enfermedades Digestivas.2020;[Epub] CrossRef
Inflammatory Bowel Disease and Vitamin D
Ki Bae Kim, Hyoung Woo Kim, Jun Su Lee, Soon Man Yoon
The Korean Journal of Gastroenterology.2020; 76(6): 275. CrossRef
Vitamin D in Inflammatory Bowel Disease: Biological, Clinical and Therapeutic Aspects
Raúl Vicente Olmedo-Martín, Inmaculada González-Molero, Gabriel Olveira, Víctor Amo-Trillo, Miguel Jiménez-Pérez
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Arnold De Loof, Liliane Schoofs
Frontiers in Endocrinology.2019;[Epub] CrossRef

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Colorectal neoplasia

Association of visceral adiposity and insulin resistance with colorectal adenoma and colorectal cancer: In Sub Jung, Cheol Min Shin, Sung Jae Park, Young Soo Park, Hyuk Yoon, Hyun Jin Jo, Nayoung Kim, Dong Ho Lee; Intest Res 2019;17(3):404-412. Published online November 12, 2018; DOI: https://doi.org/10.5217/ir.2018.00072

Abstract PDF PubReader ePub

Background/Aims
To examine whether visceral adiposity serves as a risk factor for colorectal cancer (CRC) and colorectal adenomas.
Methods
Two hundred healthy subjects, 200 patients with colorectal adenoma, and 151 patients with CRC (46 with early-stage and 105 with advanced-stage cancers) were enrolled at a tertiary referral hospital. All subjects underwent colonoscopy, and had laboratory data, and computed tomography (CT) scan available for abdominal fat measurement. An abdominal CT scan taken 1 to 4 years (mean interval, 20.6 months) before the diagnosis of CRC was also available in the 42 CRC patients.
Results
The mean areas of visceral adipose tissue (VAT) areas in the control, adenoma, early- and advanced-stage CRC groups were 94.6, 116.8, 110.4, and 99.7 cm2 , respectively (P<0.001). The risk of adenoma positively correlated with VAT area and the visceral-to-total fat ratio (P for trend <0.01), but the risk of CRC did not (P>0.05). The risk of both adenoma and CRC positively correlated with fasting plasma glucose levels (P for trend <0.05). In patients with early-stage cancer (n=17), VAT area decreased when the CT scan at diagnosis was compared with that taken before the diagnosis of CRC, but superficial adipose tissue area did not, so visceral-to-total fat ratio significantly decreased (46.6% vs. 50.7%, respectively, P=0.018)
Conclusions
VAT area is related to the risk of colorectal adenoma. However, VAT decreases from the early stages of CRC. Impaired fasting glucose has a role in colorectal carcinogenesis.

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Iman Elahi Vahed, Mahsa Moshgelgosha, Abdolmajid Kor, Mona Minadi, Faezeh Ebrahimi, Aylar Azhdarian, Mobina Arjmandi, Aida Alamdar, Maede Zare, Niloufar Shabani, Hossein Soltaninejad, Mohammad Rahmanian
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Adiposity associations with risk of colorectal cancer: a systematic review
Shelby G. Ziller, Carrie S. Standage‐Beier, Uzoamaka E. Okwor, D. Jean McClelland, Bahar Bakhshi, Dawn K. Coletta, Jennifer W. Bea
Obesity.2025; 33(8): 1416. CrossRef
Change in abdominal obesity after colon cancer surgery – effects of left-sided and right-sided colonic resection
Younes Kays Mohammed Ali, Troels Gammeltoft Dolin, Janus Damm Nybing, Jakob Lykke, Frederik Hvid Linden, Erik Høgh-Schmidt, Thorkild I. A. Sørensen, Jesper Frank Christensen, Yousef J. W. Nielsen, Jim Stenfatt Larsen, Sten Madsbad, Julia Sidenius Johansen
International Journal of Obesity.2024; 48(4): 533. CrossRef
Research Progress on the Correlation between Metabolic Syndrome and Colorectal Polyps
欣然王
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MAFLD with central obesity is associated with increased risk of colorectal adenoma and high-risk adenoma
Jingfang Xiong, Yijun Wu, Dongya Chen, Zhaolin Zhang, Yihui Liu, Jiandong Luo, Hong Xu
BMC Gastroenterology.2024;[Epub] CrossRef
Association between Atherosclerosis and High-Risk Colorectal Adenomas based on Cardio-Ankle Vascular Index and Ankle-Brachial Index
Jung Ho Lee, Hyunseok Cho, Sang Hoon Lee, Sung Joon Lee, Chang Don Kang, Dae Hee Choi, Jin Myung Park, Seung-Joo Nam, Tae Suk Kim, Ji Hyun Kim, Sung Chul Park
The Korean Journal of Gastroenterology.2024; 83(4): 143. CrossRef
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Le Gao, Tian Yang, Ziru Xue, Chak Kwan Dickson Chan
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Abdominal fat and muscle distributions in different stages of colorectal cancer
Jun Han, Xinyang Liu, Min Tang, Fan Yang, Zuoyou Ding, Guohao Wu
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Arterial stiffness is associated with high-risk colorectal adenomas and serrated lesions: A cross-sectional study in a Taiwanese population
Hung-Yu Chen, Wen-Huang Lee, Hung-Lung Hsu, Yu-Tsung Chou, Fei-Lin Su, I-Hsuan Wu, Ting-Hsing Chao
Journal of Cardiology.2022; 80(2): 139. CrossRef
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Domenic G. Di Rollo, Josh McGovern, Christopher Morton, Gillian Miller, Ross Dolan, Paul G. Horgan, Donald C. McMillan, David Mansouri
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Marc Bardou, Alexia Rouland, Myriam Martel, Romaric Loffroy, Alan N. Barkun, Nicolas Chapelle
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Chan Hyuk Park, Yoon Suk Jung, Nam Hee Kim, Jung Ho Park, Dong Il Park, Chong Il Sohn
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Obesity, sleep apnea, and cancer
Isaac Almendros, Miguel A. Martinez-Garcia, Ramon Farré, David Gozal
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Opportunistic use of radiological measures of visceral adiposity for assessment of risk of colorectal adenoma
Zi Qin Ng, Ruwan Wijesuriya, Philip Misur, Jih Huei Tan, Kyaw Soe Moe, Mary Theophilus
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Changes in Abdominal Obesity Affect the Risk of Metachronous Advanced Colorectal Neoplasia Development after Polypectomy
Yoon Suk Jung, Nam Hee Kim, Jung Ho Park, Dong Il Park, Chong Il Sohn
Yonsei Medical Journal.2020; 61(7): 579. CrossRef

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Colorectal neoplasia

Clinical features and outcomes in spontaneous intramural small bowel hematoma: cohort study and literature review: Eun Ae Kang, Seung Jun Han, Jaeyoung Chun, Hyun Jung Lee, Hyunsoo Chung, Jong Pil Im, Sang Gyun Kim, Joo Sung Kim, Hyuk Yoon, Cheol Min Shin, Young Soo Park, Nayoung Kim, Dong Ho Lee, Hyun Chae Jung; Intest Res 2019;17(1):135-143. Published online October 10, 2018; DOI: https://doi.org/10.5217/ir.2018.00085

Abstract PDF Supplementary Material PubReader ePub

Background/Aims
Spontaneous intramural small bowel hematoma (SISBH) is an extremely rare complication of anticoagulant or antiplatelet therapy. We assessed the clinical characteristics and outcomes of patients with SISBH according to the anatomical location of the hematoma.
Methods
From January 2003 to February 2016, medical records for all patients hospitalized for SISBH at 2 tertiary referral hospitals were retrospectively reviewed. The primary outcome was requirement for surgery.
Results
A total of 37 patients were enrolled. The mean age was 74.1 years. Among them, 33 patients (89.2%) were taking anticoagulant and/or antiplatelet agents. Duodenal intramural hematoma was detected in 4 patients (10.8%), jejunal in 16 (43.2%), and ileal in 17 (45.9%). Compared to jejunal and ileal involvement, duodenal intramural hematoma was significantly associated with high Charlson comorbidity index and low levels of white blood cells, hemoglobin, and platelets in the blood. SISBH in the duodenum was related to thrombocytopenia in 3 patients following systemic chemotherapy for malignancy. All patients with SISBH showed clinical improvement with conservative therapy. Mean length of hospital stay was 9.35 days. Independent predictors of a hospital stay of more than 7 days were body weight less than 60 kg (odds ratio [OR], 12.213; 95% confidence interval [CI], 1.755–84.998; P=0.011) and a history of cerebrovascular accidents (OR, 6.667; 95% CI, 1.121–39.650; P=0.037).
Conclusions
Compared to jejunal and ileal involvement, thrombocytopenia may result in spontaneous duodenal intramural hematoma among patients who are treated with systemic chemotherapy for malignancies. Patients with SISBH have excellent clinical outcomes with conservative therapy regardless of the anatomical location of the hematoma.

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Duodenal Biopsy Gone Bad: Hematoma, Obstruction, Hemoperitoneum, and Everything Else You Don’t Want
Noemi Zorzetti, Augusto Lauro, Cinzia Baccaro, Giuseppe Ponticelli, Pasquale Ascenzi, Vincenzo Cennamo, Giuseppe Giovanni Navarra
Digestive Diseases and Sciences.2026; 71(2): 427. CrossRef
Spontaneous intramural small-bowel hematoma secondary to coagulopathy in patients receiving vitamin K antagonists: A case series report
Khac Thao Thai, Trong Hoe Nguyen, Thanh Son Le, Doanh Hieu Tran
Medicine.2026; 105(18): e48527. CrossRef
Drug-Induced Spontaneous Intramural Hematoma of the Gastrointestinal Tract: A Real-World Pharmacovigilance Analysis
Xuehong Wang, Min Luo, Wenyu Li, Yuqian Zhou
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Idiopathic Duodenal Hematoma: A Case Report and Literature Review
Ebtesam Al-Najjar, Abdullah Esmail, Bayan Khasawneh, Saifudeen Abdelrahim, Maen Abdelrahim
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Ali Hajihashemi, Hadi Khanifar, Mahsa Geravandi
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A Case of Direct-Acting Oral Anticoagulant-Induced Intramural Colon Hematoma Successfully Treated by Laparoscopic Surgery
Daisuke Tomita, Shigeo Toda, Ryo Miyazaki, Shuichiro Matoba, Hiroya Kuroyanagi
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Sigrid L. Williamson, Aishwarya Suresh, Adrian Ong
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Intramural duodenal hematoma: diagnosis and management of a rare entity
Álvaro Pérez-Rubio, Juan Carlos Sebastián-Tomás, Sergio Navarro-Martínez, Marta Córcoles Córcoles, Carlos Domingo del Pozo
Cirugía Española (English Edition).2023; 101(7): 515. CrossRef
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Álvaro Pérez-Rubio, Juan Carlos Sebastián-Tomás, Sergio Navarro-Martínez, Marta Córcoles Córcoles, Carlos Domingo del Pozo
Cirugía Española.2023; 101(7): 515. CrossRef
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Richelle G. Butcher, Baukje Lenting, Alison S. Clarke, Kelly Buckle, Cristina Gans
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Mazin N Habhab, Asad J Torabi, Julie M Clary, George E Revtyak
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Karim El Aidaoui, Wahib Lahlou, Abderrahim Bourial, Nawal Bouknani, Chafik El Kettani
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Wei-Jung Teng, Ching-Huei Kung, Mei-Mei Cheng, Jia-Ruey Tsai, Chia-Yau Chang
Journal of Clinical Medicine.2023; 12(9): 3093. CrossRef
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Giorgio Valerii, Vittorio Maria Ormando, Carlo Cellini, Luca Sacco, Carmelo Barbera
World Journal of Gastroenterology.2022; 28(20): 2243. CrossRef
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Ding-Han Chen, Khay-Seng Soh, Ying-Tso Wang, Te-Chun Shen
Medicine.2022; 101(35): e30335. CrossRef
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Rebeca de Barros Lopes, Finn McLennan Battleday, Toby Calvert, Rob Gwynne‐Jones, Rebecca Thomas
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SPONTANEOUS INTRAMURAL SMALL-BOWEL HEMATOMA: A CAUSE OF ACUTE ABDOMEN IN ANTICOAGULATED PATIENTS
Sergio Gil Rojas, Luis Miguel Estela Villa, Elsa María Jiménez Vicente
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Allison A. Aka, Jesse P. Wright, Teresa DeBeche-Adams
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Luísa Martins Figueiredo, David Valadas Horta, Jorge A. Reis
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IBD

Vitamin D deficiency is associated with disease activity in patients with Crohn’s disease: Kyoung Ho Ko, You Sun Kim, Bo Kyung Lee, Jong Hyun Choi, Yong Moon Woo, Jin Young Kim, Jeong Seop Moon; Intest Res 2019;17(1):70-77. Published online October 10, 2018; DOI: https://doi.org/10.5217/ir.2018.00022

Abstract PDF PubReader ePub

Background/Aims
Previous data suggest that vitamin D has a significant role in inflammatory bowel disease (IBD). We investigated the incidence of vitamin D deficiency in Korean patients with IBD and the correlation between serum vitamin D level and disease activity.
Methods
We retrospectively analyzed the medical records of patients with IBD whose serum vitamin D levels were checked. Deficiency of 25-hydroxyvitamin D was defined as <20 ng/mL. Disease activity was evaluated using the partial Mayo score for ulcerative colitis (≥2 defined as active disease) and Harvey-Bradshaw index for Crohn’s disease (≥4 defined as active disease).
Results
We enrolled 87 patients with IBD (ulcerative colitis [UC], 45; Crohn’s disease [CD], 42). Among them, 65.5% (57/87) were men, with a mean age of 44.9±15.1 years (range, 18–75 years). The mean duration of disease was 4.7±4.8 years (range, 0.1–17.1 years). Vitamin D deficiency was found in 73.6% (64/87) of patients with IBD. Patients with IBD (mean vitamin D level, 16.3±9.0 ng/mL) showed lower vitamin D level than the healthy control group (mean vitamin D level, 20.4±7.0 ng/mL), with no statistically significant difference (P=0.136). Disease activity was inversely correlated with vitamin D deficiency in patients with CD (P=0.007). However, no correlation was observed in patients with UC (P=0.134).
Conclusions
Approximately 75% of Korean patients with IBD showed vitamin D deficiency state. Vitamin D deficiency is associated with disease activity, particularly in patients with CD.

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Assessment of bone health by bone turnover biomarkers in a cohort of Egyptian patients with inflammatory bowel disease: a cross-sectional analytical study
Salma Omran, Hadeel Gamal Eldeen, Zeinab Abdellatif, Doaa M. Abdou, Reem Hamdy A Mohammed, AbdelAziz Gaber, Ahmed Farrag, Maissa El Raziky
Egyptian Rheumatology and Rehabilitation.2025;[Epub] CrossRef
Crohn's disease and nutrition: current perspectives on dietary therapy and nutritional support
O. B. Shchukina, V. A. Samoletova, A. V. Isakova
Medical alphabet.2025; (13): 16. CrossRef
Gut, bone, and muscle: the triad of osteosarcopenia in inflammatory bowel disease
Shilpa Sharma
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Correlation of Socioeconomic and Environmental Factors With Incidence of Crohn Disease in Children and Adolescents: Systematic Review and Meta-Regression
Jens Weidner, Ingmar Glauche, Ulf Manuwald, Ivana Kern, Ines Reinecke, Franziska Bathelt, Makan Amin, Fan Dong, Ulrike Rothe, Joachim Kugler
JMIR Public Health and Surveillance.2024; 10: e48682. CrossRef
Micronutrient Deficiency and Muscular Status in Inflammatory Bowel Disease
Joonhee Han, Hyun Joo Song, Min Sook Kang, Hogyung Jun, Heung Up Kim, Ki Soo Kang, Donghyoun Lee
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Is Serum 25-Hydroxyvitamin D Level Associated with Severity of COVID-19? A Retrospective Study
Munachimso Kizito Mbata, Mireille Hunziker, Anja Makhdoomi, Giorgia Lüthi-Corridori, Maria Boesing, Stéphanie Giezendanner, Jürgen Muser, Anne B. Leuppi-Taegtmeyer, Jörg D. Leuppi
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Genotype Prevalence of Lactose Deficiency, Vitamin D Deficiency, and the Vitamin D Receptor in a Chilean Inflammatory Bowel Disease Cohort: Insights from an Observational Study
Tamara Pérez-Jeldres, M. Bustamante, Roberto Segovia-Melero, Nataly Aguilar, Fabien Magne, Gabriel Ascui, Denisse Uribe, Lorena Azócar, Cristián Hernández-Rocha, Ricardo Estela, Verónica Silva, Andrés De La Vega, Elizabeth Arriagada, Mauricio Gonzalez, Gi
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The correlation between serum 25-hydroxyvitamin D level and ulcerative colitis: a systematic review and meta-analysis
Chenyu Liu, Xin Liu, Haitao Shi, Fenrong Chen, Linlang Sun, Xin Gao, Yan Wang
European Journal of Gastroenterology & Hepatology.2023; 35(12): 1375. CrossRef
Prevalence and relevant factors of micronutrient deficiencies in hospitalized patients with inflammatory bowel disease
Xiaojuan Li, Yedong Hu, Xiaodan Shi, Xinyan Zhu, Fei Liu
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Zengrong Wu, Deliang Liu, Feihong Deng
Journal of Inflammation Research.2022; Volume 15: 3167. CrossRef
Evaluation of nutritional status using bioelectrical impedance analysis in patients with inflammatory bowel disease
Seung Hyuk Kim, You Sun Kim, Si Hyeong Lee, Hyun Mi Lee, Won Eui Yoon, Seo Hyun Kim, Hee Jun Myung, Jeong Seop Moon
Intestinal Research.2022; 20(3): 321. CrossRef
The Crosstalk between Vitamin D and Pediatric Digestive Disorders
Cristina Oana Mărginean, Lorena Elena Meliț, Reka Borka Balas, Anca Meda Văsieșiu, Tudor Fleșeriu
Diagnostics.2022; 12(10): 2328. CrossRef
Intestinal vitamin D receptor signaling ameliorates dextran sulfate sodium‐induced colitis by suppressing necroptosis of intestinal epithelial cells
Yongyan Shi, Xuewei Cui, Yanli Sun, Qun Zhao, Tianjing Liu
The FASEB Journal.2020; 34(10): 13494. CrossRef
Relationship Between Vitamin D Deficiency and Disease Activity in Patients with Inflammatory Bowel Disease in Ahvaz, Iran

Esmat Rasouli, Narges Sadeghi, Abazar Parsi, Seyed Jalal Hashemi, Morteza Nayebi, Aliakbar Shayesteh
Clinical and Experimental Gastroenterology.2020; Volume 13: 419. CrossRef
Inflammatory Bowel Disease and Vitamin D
Ki Bae Kim, Hyoung Woo Kim, Jun Su Lee, Soon Man Yoon
The Korean Journal of Gastroenterology.2020; 76(6): 275. CrossRef
Implications of the Westernized Diet in the Onset and Progression of IBD
Fernando Rizzello, Enzo Spisni, Elisabetta Giovanardi, Veronica Imbesi, Marco Salice, Patrizia Alvisi, Maria Chiara Valerii, Paolo Gionchetti
Nutrients.2019; 11(5): 1033. CrossRef
Vitamin D deficiency associated with Crohn’s disease and ulcerative colitis: a meta-analysis of 55 observational studies
Xi-Xi Li, Yang Liu, Jie Luo, Zhen-Dong Huang, Chao Zhang, Yan Fu
Journal of Translational Medicine.2019;[Epub] CrossRef
Vitamin D Deficiency is Associated with Increased Disease Activity in Patients with Inflammatory Bowel Disease
Johannes Hausmann, Alica Kubesch, Mana Amiri, Natalie Filmann, Irina Blumenstein
Journal of Clinical Medicine.2019; 8(9): 1319. CrossRef
The Association of Disease Activity, BMI and Phase Angle with Vitamin D Deficiency in Patients with IBD
Maria Chiara Mentella, Franco Scaldaferri, Marco Pizzoferrato, Antonio Gasbarrini, Giacinto Abele Donato Miggiano
Nutrients.2019; 11(11): 2583. CrossRef

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IBD

Nonimmunity against hepatitis B virus infection in patients newly diagnosed with inflammatory bowel disease: Seong Jae Yeo, Hyun Seok Lee, Byung Ik Jang, Eun Soo Kim, Seong Woo Jeon, Sung Kook Kim, Kyeong Ok Kim, Yoo Jin Lee, Hyun Jik Lee, Kyung Sik Park, Yun Jin Jung, Eun Young Kim, Chang Heon Yang; Intest Res 2018;16(3):400-408. Published online July 27, 2018; DOI: https://doi.org/10.5217/ir.2018.16.3.400

Abstract PDF PubReader ePub

Background/Aims

This study aimed to elucidate the prevalence of hepatitis B virus (HBV) serologic markers in Korean patients newly diagnosed with, but not yet treated for inflammatory bowel disease (IBD).

Methods

We prospectively enrolled 210 patients newly diagnosed with IBD (109 with ulcerative colitis and 101 with Crohn's disease). Hepatitis B surface antigen (HBsAg), hepatitis B surface antibody (anti-HBs), and hepatitis B core antibody (anti-HBc) levels were measured and compared with those of 1,100 sex- and age-matched controls.

Results

The prevalence of chronic HBV infection (positive HBsAg, positive anti-HBc, and negative anti-HBs results) and past infection (negative HBsAg, positive anti-HBc, and positive or negative anti-HBs results) were not significantly different between the patients and controls (chronic HBV infection: IBD, 3.8% vs. control, 4.9%, P=0.596; past infection: IBD, 26.2% vs. control, 28.8%, P=0.625). The patients with IBD aged <20 years were at a higher susceptibility risk (nonimmune) for HBV infection than the controls (IBD, 41.5% vs. control, 22.4%; P=0.018). In the multivariate analysis, an age of <20 years (P=0.024) and symptom duration of ≥12 months before diagnosis (P=0.027) were identified as independent risk factors for nonimmunity against HBV infection.

Conclusions

The patients newly diagnosed with IBD were susceptible to HBV infection. The frequency of nonimmunity was high, especially in the patients aged <20 years and those with a longer duration of symptoms before diagnosis. Therefore, it is necessary to screen for HBV serologic markers and generate a detailed vaccination plan for patients newly diagnosed with IBD.

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Evolution of inflammatory bowel disease in Korea: a 60-year perspective on clinical and research development
Suk-Kyun Yang
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Suprabhat Giri, Dhiraj Agrawal, Shivaraj Afzalpurkar, Sunil Kasturi, Amrit Gopan, Sridhar Sundaram, Aditya Kale
Intestinal Research.2023; 21(3): 392. CrossRef
Viral Hepatitis in Patients with Inflammatory Bowel Disease
Seung Hwan Shin, Sang Hyoung Park
The Korean Journal of Gastroenterology.2022; 80(2): 51. CrossRef
Vaccination strategies for Korean patients with inflammatory bowel disease
Yoo Jin Lee, Eun Soo Kim
The Korean Journal of Internal Medicine.2022; 37(5): 920. CrossRef
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Georgios Axiaris, Evanthia Zampeli, Spyridon Michopoulos, Giorgos Bamias
World Journal of Gastroenterology.2021; 27(25): 3762. CrossRef
Prevention and management of viral hepatitis in inflammatory bowel disease: a clinical practice guideline by the Korean Association for the Study of Intestinal Diseases
Soo-Kyung Park, Chang Hwan Choi, Jaeyoung Chun, Heeyoung Lee, Eun Sun Kim, Jae Jun Park, Chan Hyuk Park, Bo-In Lee, Yunho Jung, Dong-Il Park, Do Young Kim, Hana Park, Yoon Tae Jeen
Intestinal Research.2020; 18(1): 18. CrossRef
Evaluating Hepatitis B Seroprotection and Revaccination for Children With Inflammatory Bowel Disease
Erica J Brenner, Ravi Jhaveri, Michael D Kappelman, Ajay S Gulati
Inflammatory Bowel Diseases.2019; 25(9): e108. CrossRef
The importance of immunization in immune-mediated inflammatory disease cannot be overstated
Sang Hyoung Park
Intestinal Research.2018; 16(3): 325. CrossRef

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Focused Review: Colorectal Cancer

Colorectal neoplasia

Serrated neoplasia pathway as an alternative route of colorectal cancer carcinogenesis: Soon Young Kim, Tae Il Kim; Intest Res 2018;16(3):358-365. Published online July 27, 2018; DOI: https://doi.org/10.5217/ir.2018.16.3.358

Abstract PDF PubReader ePub

In the past two decades, besides conventional adenoma pathway, a subset of colonic lesions, including hyperplastic polyps, sessile serrated adenoma/polyps, and traditional serrated adenomas have been suggested as precancerous lesions via the alternative serrated neoplasia pathway. Major molecular alterations of sessile serrated neoplasia include BRAF mutation, high CpG island methylator phenotype, and escape of cellular senescence and progression via methylation of tumor suppressor genes or mismatch repair genes. With increasing information of the morphologic and molecular features of serrated lesions, one major challenge is how to reflect this knowledge in clinical practice, such as pathologic and endoscopic diagnosis, and guidelines for treatment and surveillance.

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Stool-based SDC2/SFRP2/TFPI2 methylation assay for colorectal neoplasia screening: a multicenter, case-control study
Xiaoping Li, Qiuyu Liao, Wenhui Yang, Zhiguo Xiong, Mark Holmes, Kaiyu Li, Jie Pan, Jing Yan, Gang Liu
Frontiers in Oncology.2026;[Epub] CrossRef
Genetic and Epigenetic Mechanisms in Serrated Adenocarcinomas and Classical Colorectal Carcinomas: An In Silico Study
Zeynep Sagnak Yilmaz, Sibel Demir Kececi, Ozgul Sagol, Sulen Sarioglu
Current Issues in Molecular Biology.2026; 48(2): 179. CrossRef
Distinguishing colorectal sessile serrated lesions from hyperplastic polyps: development of a prediction model based on logistic regression
Dian Zhang, Xiao Tan, Weiling Hu
BMC Gastroenterology.2026;[Epub] CrossRef
Construction and validation of a risk nomogram model for colorectal sessile serrated lesions
Sihui Huang, Shiyu Liu, Fang Tan, Hu Chen, Guangxia Chen
Journal of International Medical Research.2025;[Epub] CrossRef
Discrete Immunohistochemical and Clinicopathological Features of Serrated Adenocarcinoma between the Proximal and Distal Colon
Naoki Tsugawa, Eiji Kamba, Takashi Murakami, Yudai Otsuki, Kei Nomura, Yuichiro Kadomatsu, Hirofumi Fukushima, Kiichi Sugimoto, Tsuyoshi Saito, Tomoyoshi Shibuya, Takashi Yao, Akihito Nagahara
Digestion.2025; : 1. CrossRef
Impact of Clinical and Endoscopic Features on the Development of Metachronous Colorectal Advanced Serrated Lesions
Carol Rouphael, Jessica El Halabi, James Bena, John McMichael, Carol A. Burke
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Serum DNA methylome of the colorectal cancer serrated pathway enables non‐invasive detection
María Gallardo‐Gómez, Lara Costas‐Ríos, Carlos A. Garcia‐Prieto, Lara Álvarez‐Rodríguez, Luis Bujanda, Maialen Barrero, Antoni Castells, Francesc Balaguer, Rodrigo Jover, Manel Esteller, Antoni Tardío Baiges, Joaquín González‐Carreró Fojón, Joaquín Cubiel
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Different modifiable risk factors for the development of non-advanced adenoma, advanced adenomatous lesion, and sessile serrated lesions, on screening colonoscopy
A. Reum Choe, Eun Mi Song, Heeju Seo, Hyunju Kim, Gyuri Kim, Sojin Kim, Ju Ran Byeon, Yehyun Park, Chung Hyun Tae, Ki-Nam Shim, Sung-Ae Jung
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Thi Khuc, Amol Agarwal, Feng Li, Sergey Kantsevoy, Bryan Curtin, Matilda Hagan, Mary Harris, Anurag Maheshwari, Amit Raina, Elinor Zhou, Paul Thuluvath
Digestive Diseases and Sciences.2023; 68(2): 616. CrossRef
Sessile serrated lesion detection rates continue to increase: 2008–2020
Nicholas Edwardson, Prajakta Adsul, Zorisadday Gonzalez, V. Shane Pankratz, Gulshan Parasher, Kevin English, Shiraz Mishra
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Escape from oncogene-induced senescence is controlled by POU2F2 and memorized by chromatin scars
Ricardo Iván Martínez-Zamudio, Alketa Stefa, José Américo Nabuco Leva Ferreira Freitas, Themistoklis Vasilopoulos, Mark Simpson, Gregory Doré, Pierre-François Roux, Mark A. Galan, Ravi J. Chokshi, Oliver Bischof, Utz Herbig
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Serrated lesions of colon
Bhanushree C S
Indian Journal of Pathology and Oncology.2023; 10(4): 332. CrossRef
Serrated Polyps and the Risk of Metachronous Colorectal Advanced Neoplasia: A Systematic Review and Meta-Analysis
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Yoon Suk Jung, Nam Hee Kim, Youngwoo Kim, Dong Il Park
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Left-sided colorectal cancer distinct in indigenous African patients compared to other ethnic groups in South Africa
Michelle McCabe, Clement Penny, Pumza Magangane, Sheefa Mirza, Yvonne Perner
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Asymmetric crypt fission in sessile serrated lesions
Carlos A Rubio, Peter T Schmidt
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EGFR and BRAF mutations in inverted sinonasal papilloma — a more complex landscape?
Sarah Zonnur, Andreas Erbersdobler, Björn Schneider
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Paul P Shao, Changhan R Shao, Tahmineh Romero, Felix W Leung
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Association Between Cigarette Smoking and Alcohol Consumption and Sessile Serrated Polyps in Subjects 30 to 49 Years Old
Ji Young Lee, Hye-Sook Chang, Tae Hyup Kim, Eun Ju Chung, Hye Won Park, Jong-Soo Lee, Sun Mi Lee, Dong-Hoon Yang, Jaewon Choe, Jeong-Sik Byeon
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Case Report

IBD

A case of pemphigus vulgaris associated with ulcerative colitis: Joo Wan Seo, Jongha Park, Jin Lee, Mi Young Kim, Hyun Ju Choi, Heui Jeong Jeong, Ji Woon Lee, So Young Jung, Woo Kyeong Kim; Intest Res 2018;16(1):147-150. Published online January 18, 2018; DOI: https://doi.org/10.5217/ir.2018.16.1.147

Abstract PDF PubReader ePub

Pemphigus vulgaris is an autoimmune bullous disorder characterized by the production of autoantibodies against the intercellular space of the epithelium. It has rarely been reported in association with inflammatory bowel disease. Ulcerative colitis is one of the forms of inflammatory bowel disease. A 62-year-old woman who had been treated for ulcerative colitis for 16 years developed pruritic bullae on the skin of her face and body. Histological findings and direct immunofluorescence examination of the skin showed pemphigus vulgaris. She was treated with systemic steroids, mesalazine, and azathioprine. Her cutaneous lesions have remained in remission and her ulcerative colitis has remained well-controlled. The relationship between pemphigus vulgaris and ulcerative colitis is unclear. An autoimmune response has been suspected in the pathogenesis of ulcerative colitis. Pemphigus vulgaris is also associated with an autoimmune mechanism. To our knowledge, this is the first case of ulcerative colitis associated with pemphigus vulgaris reported in Korea. The association may be causal.

Citations

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Autoimmune Disorders Affecting the Larynx: Review of Laryngoscopic Findings and Approach to Multidisciplinary Management
Aditya Kotla, Emma Thayer, Gatr-Alnada Gheriani, Abigail E. Moore, C. Blake Simpson, Matthew R. Hoffman
Annals of Otology, Rhinology & Laryngology.2026; 135(6): 476. CrossRef
Autoimmune pemphigus: difficulties in diagnosis and the molecular mechanisms underlying the disease
Olga Simionescu, Sorin Ioan Tudorache
Frontiers in Immunology.2025;[Epub] CrossRef
Persistent Scattered Pustules: Vesiculopustular IgA Pemphigus Arising in a Patient With Ulcerative Colitis
Melissa M. Warne, Matthew F. Helm, Andrew Gaddi, Raminder Grover
The American Journal of Dermatopathology.2023; 45(5): 350. CrossRef
Cell-Matrix Interactions Contribute to Barrier Function in Human Colon Organoids
James Varani, Shannon D. McClintock, Muhammad N. Aslam
Frontiers in Medicine.2022;[Epub] CrossRef
Cutaneous Manifestations of Inflammatory Bowel Disease: A Basic Overview
Kyla Pagani, Danitza Lukac, Aashni Bhukhan, Jean S. McGee
American Journal of Clinical Dermatology.2022; 23(4): 481. CrossRef
Deep pemphigus (pemphigus vulgaris, pemphigus vegetans and paraneoplastic pemphigus) in dogs, cats and horses: a comprehensive review
Heng L. Tham, Keith E. Linder, Thierry Olivry
BMC Veterinary Research.2020;[Epub] CrossRef

9,836 View
61 Download
6 Web of Science
6 Crossref

Original Article

Endoscopy

Clinical outcomes of surveillance colonoscopy for patients with sessile serrated adenoma: Sung Jae Park, Hyuk Yoon, In Sub Jung, Cheol Min Shin, Young Soo Park, Na Young Kim, Dong Ho Lee; Intest Res 2018;16(1):134-141. Published online January 18, 2018; DOI: https://doi.org/10.5217/ir.2018.16.1.134

Abstract PDF PubReader ePub

Background/Aims

Sessile serrated adenomas (SSAs) are known to be precursors of colorectal cancer (CRC). The proper interval of follow-up colonoscopy for SSAs is still being debated. We sought to determine the proper interval of colonoscopy surveillance in patients diagnosed with SSAs in South Korea.

Methods

We retrospectively reviewed the medical records of patients diagnosed with SSAs who received 1 or more follow-up colonoscopies. The information reviewed included patient baseline characteristics, SSA characteristics, and colonoscopy information.

Results

From January 2007 to December 2011, 152 SSAs and 8 synchronous adenocarcinomas were identified in 138 patients. The mean age of the patients was 62.2 years and 60.1% patients were men. SSAs were located in the right colon (i.e., from the cecum to the hepatic flexure) in 68.4% patients. At the first follow-up, 27 SSAs were identified in 138 patients (right colon, 66.7%). At the second follow-up, 6 SSAs were identified in 65 patients (right colon, 66.7%). At the 3rd and 4th follow-up, 21 and 11 patients underwent colonoscopy, respectively, and no SSAs were detected. The total mean follow-up duration was 33.9 months. The mean size of SSAs was 8.1±5.0 mm. SSAs were most commonly found in the right colon (126/185, 68.1%). During annual follow-up colonoscopy surveillance, no cancer was detected.

Conclusions

Annual colonoscopy surveillance is not necessary for identifying new CRCs in all patients diagnosed with SSAs. In addition, the right colon should be examined more carefully because SSAs occur more frequently in the right colon during initial and follow-up colonoscopies.

Citations

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Prevalence and Characteristics of Colorectal Serrated Polyps
Soo-Young Na
Journal of Digestive Cancer Research.2025; 13(1): 47. CrossRef
Endoscopic Diagnosis, Treatment, and Follow-up of Serrated Polyps
Duk Hwan Kim
Journal of Digestive Cancer Research.2023; 11(1): 30. CrossRef
Features associated with high‐risk sessile serrated polyps at index and follow‐up colonoscopy
Shahzaib Anwar, Charles Cock, Joanne Young, Graeme P Young, Rosie Meng, Kalindra Simpson, Michelle Coats, Junming Huang, Peter Bampton, Robert Fraser, Erin L Symonds
Journal of Gastroenterology and Hepatology.2021; 36(6): 1620. CrossRef
Descriptive epidemiological study of South African colorectal cancer patients at a Johannesburg Hospital Academic institution
Michelle McCabe, Yvonne Perner, Rindidzani Magobo, Sheefa Mirza, Clement Penny
JGH Open.2020; 4(3): 360. CrossRef
Associations between molecular characteristics of colorectal serrated polyps and subsequent advanced colorectal neoplasia
Xinwei Hua, Polly A. Newcomb, Jessica Chubak, Rachel C. Malen, Rebecca Ziebell, Aruna Kamineni, Lee-Ching Zhu, Melissa P. Upton, Michelle A. Wurscher, Sushma S. Thomas, Hana Newman, Sheetal Hardikar, Andrea N. Burnett-Hartman
Cancer Causes & Control.2020; 31(7): 631. CrossRef
The association between colorectal sessile serrated adenomas/polyps and subsequent advanced colorectal neoplasia
Andrea N. Burnett-Hartman, Jessica Chubak, Xinwei Hua, Rebecca Ziebell, Aruna Kamineni, Lee-Ching Zhu, Melissa P. Upton, Rachel C. Malen, Sheetal Hardikar, Polly A. Newcomb
Cancer Causes & Control.2019; 30(9): 979. CrossRef
Surveillance colonoscopy in patients with sessile serrated adenoma
Ji Hyung Nam, Hyoun Woo Kang
Intestinal Research.2018; 16(3): 502. CrossRef

18,716 View
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7 Crossref

Case Report

Crohn's disease and smoldering multiple myeloma: a case report and literature review: So Young Park, Jae Min Kim, Hyun Joon Kang, Minje Kim, Jae Joon Han, Chi Hoon Maeng, Sun Kyung Baek, Hwi-Joong Yoon, Si-Young Kim, Hyo Jong Kim; Intest Res 2017;15(2):249-254. Published online April 27, 2017; DOI: https://doi.org/10.5217/ir.2017.15.2.249

Abstract PDF PubReader ePub

Crohn's disease (CD) is a chronic inflammatory bowel disease (IBD) that presents with abdominal pain, weight loss, and diarrhea. Although the etiology has not been fully elucidated, both environmental and genetic causes are known to be involved. In chronic inflammatory conditions such as IBD, B lymphocytes are chronically stimulated, and they induce monoclonal expansion of plasma cells, sometimes resulting in monoclonal gammopathy of undetermined significance. Immunomodulators that are commonly used to control inflammation, such as tumor necrosis factor-α (TNF-α) blockers could increase the possibility of hematologic malignancy. The pathogenesis of multiple myeloma in association with TNF-α inhibitor therapy is attributed to decreased apoptosis of plasma cell populations. Here, we describe a case of a 36-year-old male patient who was diagnosed with immunoglobulin A subtype smoldering multiple myeloma during the treatment for CD with infliximab and adalimumab. We report this case along with a review of the literature on cases of multiple myeloma that occurred in conjunction with CD.

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Joy Q. Jin, Jenny M. Ahlstrom, Nathan W. Sweeney, Wilson Liao
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O. V. Taratina, P. A. Makarchuk, L. L. Vysotskaya
Koloproktologia.2019; 18(3(69)): 84. CrossRef

10,083 View
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Original Articles

The submucosal fibrosis: what does it mean for colorectal endoscopic submucosal dissection?: Eun Kyoung Kim, Dong Soo Han, Youngouk Ro, Chang Soo Eun, Kyo-Sang Yoo, Young-Ha Oh; Intest Res 2016;14(4):358-364. Published online October 17, 2016; DOI: https://doi.org/10.5217/ir.2016.14.4.358

Abstract PDF PubReader

Background/Aims

Endoscopic submucosal dissection (ESD) allows removal of colorectal epithelial neoplasms en bloc regardless of size. Colorectal ESD is a difficult procedure because of technical difficulties and risks of complications. This study aimed to assess the relationship between ESD outcome and degree of submucosal fibrosis.

Methods

Patients with colorectal tumors undergoing ESD and their medical records were reviewed retrospectively. The degree of submucosal fibrosis was classified into three types. The relationship between ESD outcome and degree of submucosal fibrosis was analyzed.

Results

ESD was performed in 158 patients. Thirty-eight cases of F0 (no) fibrosis (24.1%) and 46 cases of F2 (severe) fibrosis (29.1%) were observed. Complete resection was achieved for 138 lesions (87.3%). Multivariate analysis demonstrated that submucosal invasion of tumor and histology of carcinoma were independent risk factors for F2 fibrosis. Severe fibrosis was an independent risk factor for incomplete resection.

Conclusions

Severe fibrosis is an important factor related to incomplete resection during colorectal ESD. In cases of severe fibrosis, the rate of complete resection was low even when ESD was performed by an experienced operator. Evaluation of submucosal fibrosis may be helpful to predict the submucosal invasion of tumors and technical difficulties in ESD.

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Factors Associated with Fibrosis during Colorectal Endoscopic Submucosal Dissection: Does Pretreatment Biopsy Potentially Elicit Submucosal Fibrosis and Affect Endoscopic Submucosal Dissection Outcomes?
Masatake Kuroha, Hisashi Shiga, Yoshitake Kanazawa, Hiroshi Nagai, Tomoyuki Handa, Ryo Ichikawa, Motoyuki Onodera, Takeo Naito, Rintaro Moroi, Tomoya Kimura, Katsuya Endo, Yoichi Kakuta, Yoshitaka Kinouchi, Tooru Shimosegawa, Atsushi Masamune
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Endoscopic submucosal dissection in rectal tumors extending or not to the dentate line: A comparative analysis
Déborah Roland, Gabriel Rahmi, Enrique Pérez-Cuadrado-Robles, Guillaume Perrod, Jérémie Jacques, Maximilien Barret, Sarah Leblanc, Arthur Berger, Jérémie Albouys, Stanislas Chaussade, Christophe Cellier
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Novel approach to endoscopic submucosal dissection of a cecal lesion with nonlifting sign by submucosal fatty tissue with use of selective-regulation high-pressure water-jet method and immersion in saline solution
Felipe Ramos-Zabala, Sabina Beg, Marian García-Mayor, Adolfo Parra-Blanco, Luis Moreno-Almazán
VideoGIE.2020; 5(3): 116. CrossRef
Review on colorectal endoscopic submucosal dissection focusing on the technical aspect
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K. D. Khalin, M. Yu. Agapov, L. V. Zvereva, K. V. Stegniy
Russian Journal of Gastroenterology, Hepatology, Coloproctology.2020; 30(3): 42. CrossRef
Predictors for Submucosal Fibrosis in Patients With Superficial Squamous Esophageal Neoplasia Undergoing Endoscopic Submucosal Dissection
Xiaoduan Zhuang, Ming Xu, Zhenyu Chen, Jianqi Wang, Kai Qian, Shihao Wang, Guoming Deng, Yang Bai
Clinical and Translational Gastroenterology.2020; 11(8): e00188. CrossRef
Hybrid resection with ESD and FTRD: Could this be a rescue treatment in the presence of severe submucosal fibrosis?
Gianluca Andrisani, Francesco Maria Di Matteo
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Factors Predictive of Complete Excision of Large Colorectal Neoplasia Using Hybrid Endoscopic Submucosal Dissection: A KASID Multicenter Study
Yunho Jung, Jong Wook Kim, Jeong-Sik Byeon, Hoon Sup Koo, Sun-Jin Boo, Jun Lee, Young Hwangbo, Yoon Mi Jeen, Hyun Gun Kim
Digestive Diseases and Sciences.2018; 63(10): 2773. CrossRef
Perforation and Postoperative Bleeding Associated with Endoscopic Submucosal Dissection in Colorectal Tumors: An Analysis of 398 Lesions Treated in Saga, Japan
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Local recurrence and subsequent endoscopic treatment after endoscopic piecemeal mucosal resection with or without precutting in the colorectum
Myeongsook Seo, Eun Mi Song, Gwang Un Kim, Sung Wook Hwang, Sang Hyoung Park, Dong-Hoon Yang, Kyung-Jo Kim, Byong Duk Ye, Seung-Jae Myung, Suk-Kyun Yang, Jeong-Sik Byeon
Intestinal Research.2017; 15(4): 502. CrossRef

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A wide variation of the quality of colonoscopy reporting system in the real clinical practice in southeastern area of Korea: Jung Min Lee, Yu Jin Kang, Eun Soo Kim, Yoo Jin Lee, Kyung Sik Park, Kwang Bum Cho, Seong Woo Jeon, Min Kyu Jung, Hyun Seok Lee, Eun Young Kim, Jin Tae Jung, Byung Ik Jang, Kyeong Ok Kim, Yun Jin Chung, Chang Hun Yang; Intest Res 2016;14(4):351-357. Published online October 17, 2016; DOI: https://doi.org/10.5217/ir.2016.14.4.351

Abstract PDF PubReader

Background/Aims

Establishment of a colonoscopy reporting system is a prerequisite to determining and improving quality. This study aimed to investigate colonoscopists' opinions and the actual situation of a colonoscopy reporting system in a clinical practice in southeastern area of Korea and to assess the factors predictive of an inadequate reporting system.

Methods

Physicians who performed colonoscopies in the Daegu-Gyeongbuk province of Korea and were registered with the Korean Society of Gastrointestinal Endoscopy (KSGE) were interviewed via mail about colonoscopy reporting systems using a standardized questionnaire.

Results

Of 181 endoscopists invited to participate, 125 responded to the questionnaires (response rate, 69%). Most responders were internists (105/125, 84%) and worked in primary clinics (88/125, 70.4%). Seventy-one specialists (56.8%) held board certifications for endoscopy from the KSGE. A median of 20 colonoscopies (interquartile range, 10–47) was performed per month. Although 88.8% of responders agreed that a colonoscopy reporting system is necessary, only 18.4% (23/125) had achieved the optimal reporting system level recommended by the Quality Assurance Task Group of the National Colorectal Cancer Roundtable. One-third of endoscopists replied that they did not use a reporting document for the main reasons of "too busy" and "inconvenience." Non-endoscopy specialists and primary care centers were independent predictive factors for failure to use a colonoscopy reporting system.

Conclusions

The quality of colonoscopy reporting systems varies widely and is considerably suboptimal in actual clinical practice settings in southeastern Korea, indicating considerable room for quality improvements in this field.

Citations

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Association of Poor Differentiation or Positive Vertical Margin with Residual Disease in Patients with Subsequent Colectomy after Complete Macroscopic Endoscopic Resection of Early Colorectal Cancer
Ki Ju Kim, Hyun Seok Lee, Seong Woo Jeon, Sun Jin, Sang Won Lee
Gastroenterology Research and Practice.2017; 2017: 1. CrossRef
Derivation and validation of a risk scoring model to predict advanced colorectal neoplasm in adults of all ages
Hyo‐Joon Yang, Sungkyoung Choi, Soo‐Kyung Park, Yoon Suk Jung, Kyu Yong Choi, Taesung Park, Ji Yeon Kim, Dong Il Park
Journal of Gastroenterology and Hepatology.2017; 32(7): 1328. CrossRef
Screening strategy for colorectal cancer according to risk
Dong Soo Han
Journal of the Korean Medical Association.2017; 60(11): 893. CrossRef

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Case Report

Removal of Rectal Foreign Bodies Using Tenaculum Forceps Under Endoscopic Assistance: Keun Joon Lim, Joon Sung Kim, Boo Gyoung Kim, Sung Min Park, Jeong-Seon Ji, Byung-Wook Kim, Hwang Choi; Intest Res 2015;13(4):355-359. Published online October 15, 2015; DOI: https://doi.org/10.5217/ir.2015.13.4.355

Abstract PDF PubReader ePub

The incidence of rectal foreign bodies is increasing by the day, though not as common as that of upper gastrointestinal foreign bodies. Various methods for removal of foreign bodies have been reported. Removal during endoscopy using endoscopic devices is simple and safe, but if the foreign body is too large to be removed by this method, other methods are required. We report two cases of rectal foreign body removal by a relatively simple and inexpensive technique. A 42-year-old man with a vibrator in the rectum was admitted due to inability to remove it by himself and various endoscopic methods failed. Finally, the vibrator was removed successfully by using tenaculum forceps under endoscopic assistance. Similarly, a 59-year-old man with a carrot in the rectum was admitted. The carrot was removed easily by using the same method as that in the previous case. The use of tenaculum forceps under endoscopic guidance may be a useful method for removal of rectal foreign bodies.

Citations

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Characteristics and Outcomes Associated With Emergent Rectal Foreign Body Management: A Retrospective Cohort Analysis
Eric Frendt, Momin Masroor, Arman Saied, Arianna Neeki, Santana Youssoffi, Aldin Malkoc, Fanglong Dong, Louis Tran, Rodney Borger, David T Wong, Michael Neeki
Cureus.2023;[Epub] CrossRef
Management of unusual rectal foreign body – Case report and literature review
Ana Elisa de Landa Moraes Teixeira Grossi, Juan Eduardo Rios Rodriguez, Alexia Aina de Freitas Sousa, Danielle Alcântara Barbosa Machado, Victor Vinícius Monteiro Lins de Albuquerque, Frank Pinheiro Pessoa Coelho de Macedo
International Journal of Surgery Case Reports.2022; 94(C): 107051. CrossRef
Novel Bedside Utilization of Foley Catheter in the Emergent Removal of Colorectal Foreign Body: A Case Report and Literature Review
Terry Lefcourt, Andrew Ku, Leo Issagholian, Arianna S Neeki, Milton Retamozo, Fanglong Dong, Michael M Neeki
Cureus.2021;[Epub] CrossRef
Endoscopy-assisted Removal of a Large Rectal Foreign Body by the Valsalva Maneuver
Min Young Son, Seun Ja Park, Won Moon, Gyu Man Oh, Moo In Park, Sung Eun Kim, Jae Hyun Kim, Kyoungwon Jung
The Korean Journal of Gastroenterology.2020; 76(1): 42. CrossRef
Rectal Foreign Body Removal in the Emergency Department: A Case Report
Samuel Nesemann, Kimberly Hubbard, Mehdi Siddiqui, William Fernandez
Clinical Practice and Cases in Emergency Medicine.2020; 4(3): 450. CrossRef
Pfählungsverletzungen und rektale Fremdkörper
M. Roblick, S. Farke
coloproctology.2019; 41(1): 49. CrossRef
Pfählungsverletzungen und rektale Fremdkörper
M. Roblick, S. Farke
Notfall + Rettungsmedizin.2019; 22(5): 449. CrossRef
New endoscopic technique for retrieval of large colonic foreign bodies and an endoscopy-oriented review of the literature
Alberto Tringali, Giulia Bonato, Lorenzo Dioscoridi, Massimiliano Mutignani
BMJ Case Reports.2018; 2018: bcr-2018-226348. CrossRef
Rectal Foreign Body of Eggplant Treated Successfully by Endoscopic Transanal Removal
Hiroo Sei, Toshihiko Tomita, Keisuke Nakai, Kumiko Nakamura, Akio Tamura, Yoshio Ohda, Tadayuki Oshima, Hirokazu Fukui, Jiro Watari, Hiroto Miwa
Case Reports in Gastroenterology.2018; 12(1): 189. CrossRef
Surgical management of rectal foreign bodies: a 10-year single-center experience
Pia Kokemohr, Lars Haeder, Fabian Joachim Frömling, Peter Landwehr, Joachim Jähne
Innovative Surgical Sciences.2017; 2(2): 89. CrossRef
Successful Transanal Removal of a Rectal Foreign Body by Abdominal Compression under Endoscopic and X-Ray Fluoroscopic Observation: A Case Report
Hironobu Mikami, Norihisa Ishimura, Akihiko Oka, Ichiro Moriyama, Takafumi Yuki, Kousaku Kawashima, Shuichi Sato, Shunji Ishihara, Yoshikazu Kinoshita
Case Reports in Gastroenterology.2016; 10(3): 646. CrossRef

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Original Article

Colon Transit Time May Predict Inadequate Bowel Preparation in Patients With Chronic Constipation: Hong Jun Park, Myeong Hun Chae, Hyun-Soo Kim, Jae Woo Kim, Moon Young Kim, Soon Koo Baik, Sang Ok Kwon, Hee Man Kim, Kyong Joo Lee; Intest Res 2015;13(4):339-345. Published online October 15, 2015; DOI: https://doi.org/10.5217/ir.2015.13.4.339

Abstract PDF PubReader ePub

Background/Aims

We evaluated whether colonic transit time (CTT) can predict the degree of bowel preparation in patients with chronic constipation undergoing scheduled colonoscopy in order to assist in the development of better bowel preparation strategies for these patients.

Methods

We analyzed the records of 160 patients with chronic constipation from March 2007 to November 2012. We enrolled patients who had undergone a CTT test followed by colonoscopy. We defined patients with a CTT ≥30 hours as the slow transit time (STT) group, and patients with a CTT <30 hours as the normal transit time (NTT) group. Boston Bowel Preparation Scale (BBPS) scores were compared between the STT and NTT groups.

Results

Of 160 patients with chronic constipation, 82 (51%) were included in the STT group and 78 (49%) were included in the NTT group. Patients with a BBPS score of <6 were more prevalent in the STT group than in the NTT group (31.7% vs. 10.3%, P=0.001). Multivariate analysis showed that slow CTT was an independent predictor of inadequate bowel preparation (odds ratio, 0.261; 95% confidence interval, 0.107-0.634; P=0.003). The best CTT cut-off value for predicting inadequate bowel preparation in patients with chronic constipation was 37 hours, as determined by receiver operator characteristic (ROC) curve analysis (area under the ROC curve: 0.676, specificity: 0.735, sensitivity: 0.643).

Conclusions

Patients with chronic constipation and a CTT >30 hours were at risk for inadequate bowel preparation. CTT measured prior to colonoscopy could be useful for developing individualized strategies for bowel preparation in patients with slow CTT, as these patients are likely to have inadequate bowel preparation.

Citations

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Seoul Consensus on Clinical Practice Guidelines for Functional Constipation
Kyung Ho Song, Young Sin Cho, Jeong Eun Shin, Hye-Kyung Jung, Seon-Young Park, Seung Joo Kang, Jung-Wook Kim, Yoo Jin Lee, Hyun Chul Lim, Hee Sun Park, Seong-Jung Kim, Ra Ri Cha, Ki Bae Bang, Chang Seok Bang, Sung Kyun Yim, Seung-Bum Ryoo, Bong Hyeon Kye,
The Korean Journal of Gastroenterology.2025; 85(3): 319. CrossRef
Advanced intestinal regulation improves bowel preparation quality in patients with constipation: A systematic review and network meta-analysis
Liang Ding, JinNan Duan, Tao Yang, ChaoQiong Jin, Jun Luo, Ahuo Ma
Frontiers in Pharmacology.2023;[Epub] CrossRef
Factors affecting cecal intubation time during colonoscopy
Ke Wang, Wen-Tao Xu, Wen-Jing Kou, Xing-Shun Qi
World Chinese Journal of Digestology.2023; 31(3): 105. CrossRef
Factors affecting the quality of bowel preparation for colonoscopy in hard-to-prepare patients: Evidence from the literature
Endrit Shahini, Emanuele Sinagra, Alessandro Vitello, Rocco Ranaldo, Antonella Contaldo, Antonio Facciorusso, Marcello Maida
World Journal of Gastroenterology.2023; 29(11): 1685. CrossRef
The effect of kiwi berry (Actinidia arguta) on preventing and alleviating loperamide-induced constipation
Jiyue Zhang, Dongnan Li, Qilin Tian, Yumeng Ding, Hanqian Jiang, Guang Xin, Shunchang Cheng, Siyi Tang, Chenyu Jin, Jinlong Tian, Bin Li
Food Innovation and Advances.2023; 2(1): 1. CrossRef
A Systematic Review of Exercise Therapy for Bowel Preparation
Yuan-Yuan Zhang, Ramoo Vimala, Ping Lei Chui, Ida Normiha Hilmi
Gastroenterology Nursing.2023; 46(5): 393. CrossRef
2022 Seoul Consensus on Clinical Practice Guidelines for Functional Constipation
Young Sin Cho, Yoo Jin Lee, Jeong Eun Shin, Hye-Kyung Jung, Seon-Young Park, Seung Joo Kang, Kyung Ho Song, Jung-Wook Kim, Hyun Chul Lim, Hee Sun Park, Seong-Jung Kim, Ra Ri Cha, Ki Bae Bang, Chang Seok Bang, Sung Kyun Yim, Seung-Bum Ryoo, Bong Hyeon Kye,
Journal of Neurogastroenterology and Motility.2023; 29(3): 271. CrossRef
Taking a Long and Hard Look at Quality Predictors of Bowel Preparation for Colonoscopy
Yunho Jung
Digestive Diseases and Sciences.2023; 68(11): 4069. CrossRef
Factors Influencing the Quality of Intestinal Preparation before Colonoscopy in Special Population
瑶童
Advances in Clinical Medicine.2023; 13(11): 17129. CrossRef
Rectal Evacuation Disorders are Associated With Poor Bowel Preparation in Patients With Chronic Constipation
Mythili P. Pathipati, Casey J. Silvernale, Kenneth G. Barshop, Jasmine B. Ha, James M. Richter, Kyle D. Staller
Journal of Clinical Gastroenterology.2022; 56(5): 438. CrossRef
Combination of bisacodyl suppository and 1 L polyethylene glycol plus ascorbic acid is a non‐inferior and comfortable regimen compared to 2 L polyethylene glycol plus ascorbic acid
Sun Hwa Kim, Eun Ran Kim, Kyunga Kim, Tae Jun Kim, Sung Noh Hong, Dong Kyung Chang, Young‐Ho Kim
Digestive Endoscopy.2020; 32(4): 600. CrossRef
Modelling characteristics of inadequate bowel preparations for colonoscopy
Scott L. Cornella, Brian J. Wentworth, Charles Orton, Bethany J. Horton, Steven M. Powell
GastroHep.2020; 2(2): 72. CrossRef
Usefulness of Personal Bowel Habits as a Predictive Factor for Inadequate Bowel Preparation for Colonoscopy: A Prospective Questionnaire-Based Observational Study
Namyoung Paik, Eun Ran Kim, Tae Jun Kim, Sung Noh Hong, Dong Kyung Chang, Young-Ho Kim
Gut and Liver.2019; 13(2): 169. CrossRef
Prediction of Inadequate Bowel Preparation Using Total and Segmental Colon Transit Time in Patients with Chronic Constipation: Some Different Outcomes
Chunying Zhai, Qiyang Huang, Ningli Chai, Wengang Zhang, Enqiang Linghu
Gastroenterology Research and Practice.2019; 2019: 1. CrossRef
Gut microbiota alterations from different Lactobacillus probiotic-fermented yoghurt treatments in slow-transit constipation
Chen-Jian Liu, Xiao-Dan Tang, Jie Yu, Hai-Yan Zhang, Xiao-Ran Li
Journal of Functional Foods.2017; 38: 110. CrossRef
The management of ‘hard-to-prepare’ colonoscopy patients
Daniele Mandolesi, Leonardo Frazzoni, Franco Bazzoli, Lorenzo Fuccio
Expert Review of Gastroenterology & Hepatology.2017; 11(8): 731. CrossRef
Bowel preparation for colonoscopy
Theodor Voiosu, Andrei Voiosu, Radu Voiosu
Current Opinion in Gastroenterology.2016; 32(5): 385. CrossRef

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Case Report

Intestinal Pseudo-Obstruction as an Initial Manifestation of Systemic Lupus Erythematosus: Dong Jun Oh, Jae Nam Yang, Yun Jeong Lim, Ji Hyuk Kang, Jung Hyun Park, Mal Young Kim; Intest Res 2015;13(3):282-286. Published online June 9, 2015; DOI: https://doi.org/10.5217/ir.2015.13.3.282

Abstract PDF PubReader

Intestinal pseudo-obstruction (IPO) is an uncommon, severe complication that occurs in a small subgroup of patients with systemic lupus erythematosus (SLE). To our knowledge, approximately 30 cases of IPO in SLE have been reported in the literature. Moreover, IPO is rare as an initial manifestation of SLE. We report a case of a 43-year-old woman with SLE who initially presented with IPO.

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SLE-associated intestinal pseudo-obstruction: a case report and analysis of 43 cases
Ting Long, Ji Li, Sheng-Guang Li, Jing Zhang, Lina Zhang, Yadan Zou, Ruohan Yu, Yanfeng Zhang
Frontiers in Immunology.2026;[Epub] CrossRef
Visceral Muscle Dysmotility Syndrome With Esophageal Aperistalsis (VMDS Tetrad): A Rare Initial Manifestation of Systemic Lupus Erythematosus
Shubham Kashyap, Chhagan Lal Birda, Ankit Agarwal, Ayushi Agarwal, Vivek Chowdary Gogineni, Ashish Agarwal
ACG Case Reports Journal.2026;[Epub] CrossRef
Intestinal pseudo-obstruction as systemic lupus erythematosus complication: is it time to reconsider the role of surgery?: A case report of a tailored multidisciplinary managed 44-year-old male patient
Mario Romeo, Marcello Dallio, Raffaele Pellegrino, Francesco Saverio Lucido, Simona Parisi, Claudio Gambardella, Iacopo Panarese, Anna Russo, Ludovico Docimo, Alessandro Federico
Medicine: Case Reports and Study Protocols.2024; 5(5): e00322. CrossRef
An Atypical Initial Manifestation of Systemic Lupus Erythematosus: Lupus Enteritis Accompanied by Intestinal Pseudo-Obstruction and Bilateral Hydronephroureter
Faiza Naeem, Mishkawt U Noor, Shabnam Batool, Saira E Anwer Khan, Muhammad Akmal
Cureus.2023;[Epub] CrossRef
RETRACTED ARTICLE: A hybrid machine learning framework to predict mortality in paralytic ileus patients using electronic health records (EHRs)
Fahad Shabbir Ahmad, Liaqat Ali, Raza-Ul-Mustafa, Hasan Ali Khattak, Tahir Hameed, Iram Wajahat, Seifedine Kadry, Syed Ahmad Chan Bukhari
Journal of Ambient Intelligence and Humanized Computing.2021; 12(3): 3283. CrossRef
Early Intervention and Resolution of Pediatric Intestinal Pseudo‐Obstruction in Systemic Lupus Erythematosus
Diane Hsu, Uptej K. Khalsa, Maheen Hassan, Christy I. Sandborg, Shweta S. Namjoshi
JPGN Reports.2021;[Epub] CrossRef
Intestinal pseudo‐obstruction: Unusual presentation of systemic lupus erythematous
Myriam Ayari, Abdelwaheb Nakhli, Zeineb Teyeb, Imen Abdelaali, Syrine Bellakhal, Taieb Jomni
Clinical Case Reports.2021; 9(3): 1759. CrossRef
Intestinal pseudo-obstruction as the initial manifestation of systemic lupus erythematosus
Fang-jie Zhang, Juan Zhang, Li-ping Zhou, Ai-Min Wang, Xiang-min Li
The American Journal of Emergency Medicine.2019; 37(1): 176.e1. CrossRef
Lupus intestinal pseudo-obstruction and hydronephrosis
Brittany L. Adler, Homa Timlin, Julius Birnbaum
Medicine.2019; 98(28): e16178. CrossRef
Gastrointestinal system involvement in systemic lupus erythematosus
Z Li, D Xu, Z Wang, Y Wang, S Zhang, M Li, X Zeng
Lupus.2017; 26(11): 1127. CrossRef

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Original Article

Balsalazide Potentiates Parthenolide-Mediated Inhibition of Nuclear Factor-κB Signaling in HCT116 Human Colorectal Cancer Cells: Hyun-Young Kim, Se-Lim Kim, Young-Ran Park, Yu-Chuan Liu, Seung Young Seo, Seong Hun Kim, In Hee Kim, Seung Ok Lee, Soo Teik Lee, Sang Wook Kim; Intest Res 2015;13(3):233-241. Published online June 9, 2015; DOI: https://doi.org/10.5217/ir.2015.13.3.233

Abstract PDF PubReader

Background/Aims

Balsalazide is an anti-inflammatory drug used in the treatment of inflammatory bowel disease. Balsalazide can reduce inflammatory responses via several mechanisms, including inhibition of nuclear factor-κB (NF-κB) activity. Parthenolide (PT) inhibits NF-κB and exerts promising anticancer effects by promoting apoptosis. The present investigated the antitumor effects of balsalazide, combined with PT, on NF-κB in a representative human colorectal carcinoma cell line, HCT116.

Methods

We counted cells and conducted annexin-V assays and cell cycle analysis to measure apoptotic cell death. Western blotting was used investigate the levels of proteins involved in apoptosis.

Results

PT and balsalazide produced synergistic anti-proliferative effects and induced apoptotic cell death. The combination of balsalazide and PT markedly suppressed nuclear translocation of the NF-κB p65 subunit and the phosphorylation of inhibitor of NF-κB. Moreover, PT and balsalazide dramatically enhanced NF-κB p65 phosphorylation. Apoptosis, through the mitochondrial pathway, was confirmed by detecting effects on Bcl-2 family members, cytochrome c release, and activation of caspase-3 and -8.

Conclusions

Combination treatment with PT and balsalazide may offer an effective strategy for the induction of apoptosis in HCT116 cells.

Citations

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Chin King Looi, Ling-Wei Hii, Felicia Fei-Lei Chung, Chun-Wai Mai, Wei-Meng Lim, Chee-Onn Leong
Cancers.2021; 13(8): 1786. CrossRef
Computational investigation of FDA approved drugs as selective PARP-1 inhibitors by targeting BRCT domain for cancer therapy
Chandan Kumar, P.T.V. Lakshmi, Annamalai Arunachalam
Journal of Molecular Graphics and Modelling.2021; 108: 107919. CrossRef
Identification of Autophagy-Associated Biomarkers and Corresponding Regulatory Factors in the Progression of Colorectal Cancer
Chunrui Zhang, Jing Jiang, Liqiang Wang, Liyu Zheng, Jiankai Xu, Xiaolin Qi, Huiying Huang, Jianping Lu, Kongning Li, Hong Wang
Frontiers in Genetics.2020;[Epub] CrossRef
Anticancer and apoptotic activities of parthenolide in combination with epirubicin in mda-mb-468 breast cancer cells
Arash Ghorbani-Abdi-Saedabad, Mohammad Yahya Hanafi-Bojd, Negin Parsamanesh, Zahra Tayarani-Najaran, Homa Mollaei, Reyhane Hoshyar
Molecular Biology Reports.2020; 47(8): 5807. CrossRef
Parthenolide as Cooperating Agent for Anti-Cancer Treatment of Various Malignancies
Malgorzata Sztiller-Sikorska, Malgorzata Czyz
Pharmaceuticals.2020; 13(8): 194. CrossRef
Integration of genetic variants and gene network for drug repurposing in colorectal cancer
Lalu Muhammad Irham, Henry Sung-Ching Wong, Wan-Hsuan Chou, Wirawan Adikusuma, Eko Mugiyanto, Wan-Chen Huang, Wei-Chiao Chang
Pharmacological Research.2020; 161: 105203. CrossRef
Synthesis of azo dyes possessing N-heterocycles and evaluation of their anticancer and antibacterial properties
Zarrin Ghasemi, Sajjad Azizi, Roya Salehi, Hossein Samadi Kafil
Monatshefte für Chemie - Chemical Monthly.2018; 149(1): 149. CrossRef
Parthenolide attenuated bleomycin-induced pulmonary fibrosis via the NF-κB/Snail signaling pathway
Xiao-he Li, Ting Xiao, Jia-huan Yang, Yuan Qin, Jing-jing Gao, Hui-juan Liu, Hong-gang Zhou
Respiratory Research.2018;[Epub] CrossRef
Ursodeoxycholic acid inhibits the proliferation of colon cancer cells by regulating oxidative stress and cancer stem-like cell growth
Eun-Kyung Kim, Jae Hee Cho, EuiJoo Kim, Yoon Jae Kim, Aamir Ahmad
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Dietary selenium protects adiponectin knockout mice against chronic inflammation induced colon cancer
Arpit Saxena, Raja Fayad, Kamaljeet Kaur, Samantha Truman, Julian Greer, James A. Carson, Anindya Chanda
Cancer Biology & Therapy.2017; 18(4): 257. CrossRef
Sesquiterpene binding Gly-Leu-Ser/Lys-“co-adaptation pocket” to inhibit lung cancer cell epithelial-mesenchymal transition
Xiao-Yu Ai, Heng Zhang, Shao-Yan Gao, Yuan Qin, Wei-Long Zhong, Ju Gu, Meng Li, Kai-Liang Qiao, Qin Tian, Zhan-Hong Cui, Jia-Huan Yang, Zhun Bi, Ting Xiao, Shuang Chen, Hui-Juan Liu, Hong-Gang Zhou, Tao Sun, Cheng Yang
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Juglanin inhibits lung cancer by regulation of apoptosis, ROS and autophagy induction
Liang Chen, Ya-Qiong Xiong, Jing Xu, Ji-Peng Wang, Zi-Li Meng, Yong-Qing Hong
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Cyr61 participates in the pathogenesis of acute lymphoblastic leukemia by enhancing cellular survival via the AKT/NF-κB signaling pathway
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Scientific Reports.2016;[Epub] CrossRef

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Images of the Issue

A Patient Experiencing Bloody Diarrhea and Tenesmus for Three Weeks: Eun Sun Kim, Yoon Tae Jeen, Joo Young Kim; Intest Res 2015;13(2):180-181. Published online April 27, 2015; DOI: https://doi.org/10.5217/ir.2015.13.2.180

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Case Report

Primary Anorectal Malignant Melanoma Treated With Endoscopic Mucosal Resection: Jong Hoon Park, Jeong Rok Lee, Hyung Seok Yoon, Tae Young Jung, Eun Joo Lee, Jong Gu Lim, Soon Young Ko, Joon Ho Wang, Jae Dong Lee, Hye Young Kim; Intest Res 2015;13(2):170-174. Published online April 27, 2015; DOI: https://doi.org/10.5217/ir.2015.13.2.170

Abstract PDF PubReader

Anorectal melanoma is a rare neoplasm that accounts for less than 1-4% of anorectal malignant tumors. The main therapeutic modality for anorectal melanoma is surgical treatment, with abdominoperineal resection or wide local excision being the most common approaches. A 77-year-old male with a history of cerebral infarction and hypertension presented with anal bleeding. Here, we report a case of anorectal melanoma treated by endoscopic mucosal resection with adjuvant interferon therapy rather than surgical resection. The patient has been disease-free for 5 years after endoscopic treatment.

Citations

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Original Article

Risk Factors for Delayed Post-Polypectomy Bleeding: Min Jung Kwon, You Sun Kim, Song I Bae, Young Il Park, Kyung Jin Lee, Jung Hwa Min, Soo Yeon Jo, Mi Young Kim, Hye Jin Jung, Seong Yeon Jeong, Won Jae Yoon, Jin Nam Kim, Jeong Seop Moon; Intest Res 2015;13(2):160-165. Published online April 27, 2015; DOI: https://doi.org/10.5217/ir.2015.13.2.160

Abstract PDF PubReader

Background/Aims

Among the many complications that can occur following therapeutic endoscopy, bleeding is the most serious, which occurs in 1.0-6.1% of all colonoscopic polypectomies. The aim of this study was to identify risk factors of delayed post-polypectomy bleeding (PPB).

Methods

We retrospectively reviewed the data of patients who underwent colonoscopic polypectomy between January 2003 and December 2012. We compared patients who experienced delayed PPB with those who did not. The control-to-patient ratio was 3:1. The clinical data analyzed included polyp size, number, location, and shape, patient' body mass index (BMI), preventive hemostasis, and endoscopist experience.

Results

Of 1,745 patients undergoing colonoscopic polypectomy, 21 (1.2%) experienced significant delayed PPB. We selected 63 age- and sex-matched controls. Multivariate logistic regression analysis showed that polyps >10 mm (odds ratio [OR], 2.605; 95% confidence interval [CI], 1.035-4.528; P=0.049), a pedunculated polyp (OR, 3.517; 95% CI, 1.428-7.176; P=0.045), a polyp located in the right hemicolon (OR, 3.10; 95% CI, 1.291-5.761; P=0.013), and a high BMI (OR, 3.681; 95% CI, 1.876-8.613; P=0.013) were significantly associated with delayed PPB.

Conclusions

Although delayed PPB is a rare event, more caution is needed during colonoscopic polypectomies performed in patients with high BMI or large polyps, pedunculated polyps, or polyps located in the right hemicolon.

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Editorial

Application of Endoscopic Ultrasonography in the Diagnosis and Treatment of Lower Gastrointestinal Disease: Eun Young Kim; Intest Res 2015;13(2):101-102. Published online April 27, 2015; DOI: https://doi.org/10.5217/ir.2015.13.2.101

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Clinical significance of computed tomography-detected ascites in gastric cancer patients with peritoneal metastases
Su Hwan Kim, Young Ho Choi, Ji Won Kim, Sohee Oh, Seohui Lee, Byeong Gwan Kim, Kook Lae Lee
Medicine.2018; 97(8): e9343. CrossRef

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Case Reports

A Case of Perforated Gastrointestinal Stromal Tumor in the Jejunum as a Rare Cause of Acute Abdomen: Seong Yeol Kim, Jong Hyeok Kim, Dong Seon Park, Gil Su Jang, Eun Yeong Hong, Jung Sun An, So Yeon Kim, Ho Young Kim, Dong Hoon Kim, Ji Won Park, Il Hyun Baek, Choong Kee Park; Intest Res 2013;11(2):134-136. Published online April 30, 2013; DOI: https://doi.org/10.5217/ir.2013.11.2.134

Abstract PDF

Preoperative diagnosis of Gastrointestinal Stromal Tumors (GISTs) in the small intestine is often delayed until complications such as hemorrhage, bowel obstruction or perforation develop. Such GISTs are usually asymptomatic and tumor perforation is an uncommon clinical presentation. In this report, we review the diagnosis, pathology and treatment of a 32-year-old male with a perforated GIST in the jejunum who presented with symptoms of acute abdomen. Abdominal computed tomography (CT) showed a ruptured huge tumor with inhomogeneous density in the small intestine. The patient underwent a complete tumor excision and jejunal segmental resection. A histopathological examination of the tumor confirmed that it was a GIST. Postoperatively, the patient received medical treatment, using oral Imatinib 400 mg daily for 10 months without any signs of disease recurrence. Prognosis is worse in ruptured GISTs and in these cases, complete surgical resection of the tumor must be followed by adjuvant therapy with Imatinib. (Intest Res 2013;11:134-136)

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Prognostic Significance of Ki-67 Expression in Patients Undergoing Surgical Resection for Gastrointestinal Stromal Tumor
Seong Yeon Jeong, Won Wo Park, You Sun Kim, Young Il Park, Seung Hyup Kim, Won Jae Yoon, Jeong Seop Moon, Byung Mo Lee, Seong Woo Hong, Yun Kyung Kang
The Korean Journal of Gastroenterology.2014; 64(2): 87. CrossRef

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Two Cases of Cecal Schwannoma Which Were Removed by Endoscopic Mucosal Resection: Byeong Kwang Choi, Rok Seon Choung, Sang Yup Lee, Tae Un Yang, Sun Hwa Kim, In Kyung Yoo, Sang Kyu Lee, Seung Young Kim, Sung Woo Jung, Ja Seol Koo, Jong Jin Hyun, Hyung Joon Yim, Sang Woo Lee, Jai Hyun Choi; Intest Res 2013;11(1):56-59. Published online January 31, 2013; DOI: https://doi.org/10.5217/ir.2013.11.1.56

Abstract PDF

Schwannoma in colorectum is a rare subepithelial polyp of mesenchymal origin, which is derived from the neural sheath, and most of reported cases were removed surgically. We, herein, describe two cases of schwannoma of the cecum, which were removed by endoscopic mucosal resection. A 34-year-old man and a 62-year-old man presented with abdominal discomfort and bowel habit change. The patients were diagnosed with a subepithelial tumor in the cecum on colonoscopy and underwent endoscopic mucosal resection under a tentative impression as neuroendocrine tumor, such as carcinoid tumor. Histopathology and immunohistochemistry confirmed the colonic lesion to be a benign schwannoma. (Intest Res 2013;11:56-59)

Citations

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Solitary schwannoma of the ascending colon
Myeong Su Chu, Hyun Mo Kang, Hyeong Ju Sun, Dong Min Kim, Hyong Jong Kwak
Yeungnam University Journal of Medicine.2016; 33(1): 37. CrossRef

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Original Article

Clinical Significance of Erosive or Ulcerative Lesions Isolated in Terminal Ileum: Sun Ok Kwon, You Sun Kim, Myoung Ki Oh, Sun Young Kim, In Hye Cha, Seong Yeon Jeong, Joo Yeon Cho, Jin Nam Kim, Jeong Seop Moon; Intest Res 2012;10(4):350-356. Published online October 31, 2012; DOI: https://doi.org/10.5217/ir.2012.10.4.350

Abstract PDF: Background/Aims
Although terminal ileal erosive or ulcerative lesions are frequently observed on colonoscopic examination, their clinical significance are unclear. We evaluated clinical course and significance of isolated terminal ileal erosive or ulcerative lesions. Methods: We retrospectively analyzed clinical features, number, size and histologic findings of 186 patients with isolated terminal ileal erosive or ulcerative lesions on colonoscopic examination from December 2003 to February 2012. Results: The indications for colonoscopy included screening for colorectal cancer or surveillance in 122 patients (65.6%), evaluations for symptoms in 64 patients (34.4%). Of the 186 patients, 170 underwent biopsy at the terminal ileal lesions. Histologic findings were mostly non-specific chronic inflammation except two cases of Crohn's disease, one case of cytomegalovirus ileitis, and one case of intestinal tuberculosis. Forty six patients underwent follow-up colonoscopy and the mean duration was 17.8±14.2 months (range, 1-64 months). Of those who showed non-specific ileitis (44 patients), 35 (79.5%) showed resolution of lesions without specific treatment. In the remaining 9 (20.5%) patients, lesions were continued and two patients were diagnosed as Crohn's disease and Behcet's ileitis, respectively. There were no significant differences in the duration of follow-up, presence of symptoms, number and size of terminal ileal lesions between the patients who resolved and not resolved. Conclusions: Most isolated terminal ileal erosive or ulcerative lesions reveal non-specific histological findings and have a propensity to resolve without treatment. However, in small portions of patients, isolated terminal ileal lesions need careful attention because it is possible to be early inflammatory bowel diseases. (Intest Res 2012;10:350-356)

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Case Report

A Case of Mantle Cell Lymphoma Presenting as a Small Intestinal Stricture: Jae Bum Park, Joong Goo Kwon, Jae Young Oh, Ji-Min Han, Jin Tae Jung, Eun Young Kim, Ho Gak Kim, Hun Mo Ryoo, Hyun Dong Chae, Chang Ho Cho; Intest Res 2012;10(3):300-304. Published online July 31, 2012; DOI: https://doi.org/10.5217/ir.2012.10.3.300

Abstract PDF: Mantle cell lymphoma (MCL) is a subtype of B-cell non-Hodgkin's lymphoma (NHL), accounting for 3-10% of NHL. MCL involves the gastrointestinal (GI) tract in 10-30% of patients and common sites of MCL GI tract involvement are the colorectum and stomach, but any region of the GI tract may be involved. GI tract involvement by MCL usually presents in the form of multiple lymphomatous polyposis involving several segments of the GI tract. A few cases of MCL presenting with a GI tract stricture have been reported. Here, we present a rare case of a small intestinal stricture caused by MCL and review the literature of this disease. (Intest Res 2012;10: 0-304)

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Original Articles

Recurrence of Colorectal Neoplasm Cannot Be Predicted by Sonic Hedgehog Expression in the Normal Colonic Tissue: Ji Young Lee, Sun-Young Lee, Hye Seung Han, So Young Kim, Sung Noh Hong, Jeong Hwan Kim, In Kyung Sung, Hyung Seok Park, Chan Sup Shim, Choon Jo Jin; Intest Res 2012;10(3):265-271. Published online July 31, 2012; DOI: https://doi.org/10.5217/ir.2012.10.3.265

Abstract PDF: Background/Aims
The expression of sonic hedgehog (Shh) in the colon cancer cell has been implicated in colorectal carcinogenesis. However, the association between Shh expression in the normal colonic mucosa and the recurrence of colorectal neoplasm after tumor resection has not been well documented. The aim of the study was to determine the association between Shh expression in the normal colonic mucosa and in the recurrence of colorectal neoplasm. Methods: Fifty-five patients who underwent a long-term follow-up colonoscopy after the colorectal neoplasm resection were included. At the time of the tumor resection, Shh expression in the normal colonic mucosa was examined. The association between Shh expression in the normal colonic mucosa and the recurrence of colorectal neoplasm was analyzed. Results: In total, 97 colorectal neoplasms were detected among 41 subjects after a mean follow-up period of 63 weeks (range 27-254 weeks). Of 55 subjects, 26 (47.3%) exhibited positive Shh expression in the normal colonic tissue, and the recurrence rate did not differ with the degree of Shh expression (P=0.238). The degree of Shh expression was not associated with the number (P=0.389), size (P=0.928), location (P=0.410), pathologic types (P=0.127), or time of recurrence (P=0.711) of the recurred colorectal neoplasm. Conclusions: Most colorectal neoplasm patients show recurrence after the resection and exhibit Shh expression in the normal colonic tissue. The degree of Shh expression in the normal colonic mucosa does not predict the recurrence of colorectal neoplasm. (Intest Res 2012;10: 0-271)

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Predictors of Steroid Treatment Failure and Validation of Previous Models for Severe Attacks of Ulcerative Colitis: Jung-Wook Kim, Hyo Jong Kim, Chang Kyun Lee, Hyuck Kim, A Ri Shin, Kyung Hwan Kang, Min Kyoung Kim, Hyun Jin Park, Hoe Hoon Chung, Eun Jung Hwang; Intest Res 2012;10(3):251-264. Published online July 31, 2012; DOI: https://doi.org/10.5217/ir.2012.10.3.251

Abstract PDF

Background/Aims
Some clinical and laboratory parameter are predictors to determine steroid treatment failure in patients acute severe ulcerative colitis. We aimed to validate previous models in the Korean patients. Methods: This study was conducted retrospectively with 70 patients who were diagnosed with severe ulcerative colitis (UC) between January 2001 and June 2011. The rate of treatment failure was investigated using predictors or numerical scoring systems from prior studies. Results: Twelve (17.2%) patients failed to respond to steroid therapy. The logistic regression analysis revealed that stool frequency on the fifth day and colonic dilatation were the only independent predictive factors related to treatment failure. Formulated numerical risk scores based on mean stool frequency, colonic dilatation, and hypoalbuminemia were significantly higher in the non-responding group than those in the responding group (P＜0.001). Using another scoring system (stool frequency on the third day＋1.4×C-reactive protein [CRP]), treatment failure rate was significantly higher in the group in which the score was ＞8 than in the group with a score ＜8 (30.8% vs. 8.6%, P=0.042). Lastly, treatment failure rate was higher in the group (stool frequency ＞8 plus CRP ＞4.5 mg/dL or bloody stool plus CRP ＞4.3 mg/dL) than those of the other group at the third day (40% vs. 7.3%, P=0.004; 33.3% vs. 5.2%, P=0.014, respectively). Conclusions: Stool frequency and CRP level were the meaningful parameters among the predictors for steroid treatment response. Furthermore, several predictive models for steroid treatment failure in western countries seem to be of value for use in the Korean population. (Intest Res 2012;10: 0-264)

Citations

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Short- and Long-Term Outcomes of Acute Severe Ulcerative Colitis in Korea
Ho-Su Lee, Suk-Kyun Yang, Jae Seung Soh, Seohyun Lee, Jung Ho Bae, Hyo Jeong Lee, Sang Hyoung Park, Dong-Hoon Yang, Kyung-Jo Kim, Byong Duk Ye, Jeong-Sik Byeon, Seung-Jae Myung, Yong Sik Yoon, Chang Sik Yu, Jin-Ho Kim
Inflammatory Bowel Diseases.2015; 21(8): 1825. CrossRef

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Case Report

Mucosa-Associated Lymphoid Tissue Lymphoma of the Rectum Cured by Radiotherapy: Joon Gi Min, Jae Ho Choi, Eun Young Kim, Hyun Soo Kim, Jae Myung Cha, Joung Il Lee, Kwang Ro Joo, Hyun Phil Shin, Jae Jun Park, Weon Kyu Chung; Intest Res 2012;10(2):201-205. Published online April 30, 2012; DOI: https://doi.org/10.5217/ir.2012.10.2.201

Abstract PDF

Primary rectal mucosa-associated lymphoid tissue (MALT) lymphoma is a particularly rare disease, comprising ＜1% of gastrointestinal lymphomas. Although antibiotic therapy has been demonstrated effective for gastric MALT lymphoma, the optimal treatment for MALT lymphoma of the rectum is unknown. Radiotherapy or surgery is often used to treat limited stage MALT lymphoma of the rectum. Here, we describe a case of a 44-year-old-man, who was diagnosed with primary MALT lymphoma of the rectum through colonoscopy. Other staging evaluations, including upper gastrointestinal endoscopy, abdomino-pelvic CT, chest CT, 18F fludeoxyglucose-positron emission tomography, and a bone marrow examination showed no other abnormalities, except stage IA para-rectal lymphadenopathy. The patient received 2 months of radiotherapy without major toxicity. A follow-up abdomino-pelvic CT scan revealed marked improvement in the volume of rectal lymphoma and adjacent lymph nodes. Mucosal nodularity of the lower rectum had completely regressed at the follow-up endoscopy and complete remission was confirmed with a biopsy. (Intest Res 2012;10: 0-205)

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Endoscopic features and clinical outcomes of colorectal mucosa-associated lymphoid tissue lymphoma
Min Kyung Jeon, Hoonsub So, Jooryung Huh, Hee Sang Hwang, Sung Wook Hwang, Sang Hyoung Park, Dong-Hoon Yang, Kee Don Choi, Byong Duk Ye, Seung-Jae Myung, Suk-Kyun Yang, Jeong-Sik Byeon
Gastrointestinal Endoscopy.2018; 87(2): 529. CrossRef

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Original Articles

Relationship between Positron Emission Tomography Uptake and Macroscopic Findings of Colorectal Cancer: So Young Kim, Sun-Young Lee, Hwa-Kyung Lim, Ji Young Lee, Sung Noh Hong, Jeong Hwan Kim, In Kyung Sung, Hyung Seok Park, Chan Sup Shim, Choon Jo Jin, Hyun Woo Chung, Young So; Intest Res 2012;10(2):168-175. Published online April 30, 2012; DOI: https://doi.org/10.5217/ir.2012.10.2.168

Abstract PDF

Background/Aims
The semiquantitative parameter "standard uptake value" (SUV) of ¹⁸Fluorodeoxyglucose (FDG) positron-emission tomography (PET) provides important additional information about colorectal cancer. In general, colorectal cancers exhibit different growth patterns with different clinicopathological characteristics. The aim of this study was to elucidate the link between the macroscopic appearance of colorectal cancers and maximum SUV (SUV_max) FDG uptakes. Methods: We analyzed 347 patients with colorectal cancer who underwent PET scanning before treatment. The SUV_max of colorectal cancer was analyzed by examining PET images. The macroscopic appearance of each colorectal cancer was classified into three major types: ulcerofungating (n=223), ulceroinfiltrating (n=44), and fungating (n=78). Two cases that were difficult to classify were excluded from the study. Results: The SUV_max was higher in colorectal cancers with an ulcerofungating appearance (12.19±5.84, mean±standard deviation) and ulceroinfiltrating appearance (11.66±5.63) than in those with a fungating appearance (9.58±6.67; P=0.005) (ulcerofungating and ulceroinfiltrative vs. fungating, P＜0.001). A smaller tumor size (P＜0.001) were significantly related to the fungating colorectal cancer. Four out of six colorectal cancers that did not show FDG uptake were the fungating type. Conclusions: Colorectal cancers with a fungating appearance exhibit a lower SUV_max, shallower invasion and smaller tumor size. Our results indicate that colorectal cancers with a fungating appearance would be less prominent on PET scan than those with an ulcerofungating or ulceroinfiltrating appearance, and thus require more attention. (Intest Res 2012;10: 0-175)

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Diagnostic and prognostic value of preoperative 18F-fluorodeoxyglucose positron emission tomography/computed tomography for colorectal cancer: comparison with conventional computed tomography
Joo Young Lee, Soon Man Yoon, Jeong Tae Kim, Ki Bae Kim, Mi Jin Kim, Jae Geun Park, Taek-Gu Lee, Sang-Jeon Lee, Sung Soo Koong, Joung-Ho Han, Hee Bok Chae, Seon Mee Park, Sei Jin Youn
Intestinal Research.2017; 15(2): 208. CrossRef
Does Diabetes Mellitus Influence Standardized Uptake Values of Fluorodeoxyglucose Positron Emission Tomography in Colorectal Cancer?
Da Yeon Oh, Ji Won Kim, Seong-Joon Koh, Mingoo Kim, Ji Hoon Park, Su Yeon Cho, Byeong Gwan Kim, Kook Lae Lee, Jong Pil Im
Intestinal Research.2014; 12(2): 146. CrossRef

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The Clinical Utility of Positron Emission Tomography-computed Tomography in the Evaluation of Inflammatory Bowel Diseases: Sung Ho Ryu, Jae Hee Cheon, Won Jun Kang, Jin Young Kim, Bo Kyung Kim, Jin Young Yoon, Yoon Suk Jung, Hyun Mi Heo, Jin Ha Lee, Soung Min Jeon, Sung Pil Hong, Tae Il Kim, Won Ho Kim; Intest Res 2011;9(2):97-104. Published online August 30, 2011; DOI: https://doi.org/10.5217/ir.2011.9.2.97

Abstract PDF: Background/Aims
Positron emission tomography-computed tomography (PET-CT) is a nuclear imaging technique that provides noninvasive, three dimensional, quantitative images. Recently, PET-CT has been shown to be valuable in assessing patients with inflammatory diseases; however, the clinical utility of PET-CT in the evaluation of inflammatory bowel disease (IBD) has not been defined. Thus, the aim of this study was to determine the clinical utility of PET-CT in the evaluation of IBD. Methods: Between November 2006 and September 2010, clinical, endoscopic, and radiological data on 14 patients (6 males and 8 females: age range, 33-79 years) with suspected IBD were collected. The standard work-up method for a definite diagnosis of IBD included ileocolonoscopy. Results: The 14 patients were divided into the following five groups: ulcerative colitis (n=4, 29%), intestinal Behcet's disease (n=3, 21%), intestinal tuberculosis (n=2, 14%), malignancy (n=2, 14%), and no abnormal findings with colonoscopy (n=3, 21%). A PET-CT based-diagnosis of IBD correlated with a colonoscopic diagnosis in nine cases (64.3%), but the matching ratio of the distribution of lesions between PET-CT findings and colonoscopic findings was only 18.1% (2/11). Conclusions: The utility of PET-CT in the diagnosis of IBD requires further evaluation. (Intest Res 2011;9:97-104)

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Prevalence and Risk Factors of Colorectal Neoplasms according to Coronary Artery Obstructive Disease: Ki Tae Suk, Hyun Soo Kim, Hyun Jun Min, Hong Jun Park, Hyo Keun Jeon, Moon Young Kim, Jae Woo Kim, Soon Koo Baik, Sang Ok Kwon; Intest Res 2011;9(2):112-117. Published online August 30, 2011; DOI: https://doi.org/10.5217/ir.2011.9.2.112

Abstract PDF: Background/Aims
Both colorectal neoplasm (CN) and coronary artery obstructive disease (CAOD) are prevalent and major leading causes of death in Korea. Although CN and CAOD share similar risk factors such as male gender, smoking, hyperlipidemia, diabetes mellitus, and obesity, few studies of both CN and CAOD have been reported. In this study, we evaluated clinical correlations between CN and CAOD. Methods: Between June 2003 and December 2007, 176 patients (Male: 101, average age: 62.1±9.7 yr) who underwent colonoscopy after or before coronary angiography were retrospectively enrolled. The colonoscopic findings (normal, adenoma, or cancer) of patients as well as clinical and laboratory data according to the extent of CAOD (normal, minimal CAOD, or CAOD) were compared. Results: CAOD negative, minimal CAOD, and CAOD patients totaled 36, 40, and 100, respectively. The presence of CN (adenoma and adenocarcinoma) in CAOD negative, minimal CAOD, and CAOD cases was 42%, 48%, and 63%, respectively, which was significantly different (P＜0.05). In multivariate analysis, old age (≥60 yr; P=0.03, odds ratio 2.47) and the presence of CAOD (P=0.02, odds ratio 4.11) were associated with the presence of CN. Conclusions: The prevalence of CN increased in proportion to the severity of CAOD. Colorectal cancer screening by fecal occult blood tests or colonoscopy should be a priority in patients with CAOD, particularly the elderly. (Intest Res 2011;9:112-116)

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The Early Diagnostic Accuracy for Gastrointestinal T-cell Lymphoma from a Perspective of Gastroenterologists: Sung Ho Ryu, Jae Hee Cheon, Jin Young Kim, Bo Kyung Kim, Jin Young Yoon, Yoon Suk Jung, Hyun Mi Heo, Jin Ha Lee, Soung Min Jeon, Sung Pil Hong, Tae Il Kim, Won Ho Kim; Intest Res 2011;9(1):19-26. Published online April 30, 2011; DOI: https://doi.org/10.5217/ir.2011.9.1.19

Abstract PDF

Background/Aims
Primary T-cell lymphoma of the gastrointestinal tract is a very difficult disease entity to diagnose, and has an extremely poor prognosis. The aim of this study was to determine the early diagnostic accuracy for gastrointestinal T-cell lymphoma by gastroenterologists. Methods: Between January 2000 and October 2010, the clinical features of 15 patients with primary gastrointestinal T-cell lymphomas, including endoscopic findings, radiologic diagnosis, endoscopic biopsy findings, and final diagnosis, were retrospectively reviewed. Results: The most common initial presenting symptoms of primary gastrointestinal T-cell lymphomas was abdominal pain (n=11, 73%). The anatomic location of the primary lesion the small bowel (n=8, 53%), colon (n=5, 33%), and stomach (n=3, 20%). There were no cases of T-cell lymphomas diagnosed based on clinical symptoms, radiologic findings, or endoscopic findings without biopsy alone. Pathologic confirmation of T-cell lymphomas by endoscopic examination was achieved in 7 cases (64%) and the remaining cases (n=8, 53%) were diagnosed with T-cell lymphomas based on pathologic examination after surgery. Conclusions: All of the patients with primary T-cell lymphomas of the gastrointestinal tract were diagnosed exclusively by endoscopic or surgical pathologic examainations, suggesting that gastroenterologists should scrutinize and suspect this disease with caution due to atypical gastrointestinal ulcers. (Intest Res 2011;9: 6-26)

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Colonic Diffuse Large B-cell Lymphoma Hidden in Actinomycosis
Sang Hoon Lee, Seung-Joo Nam, Sung Joon Lee, Sung Chul Park, Chang Don Kang, Dae Hee Choi, Jin Myung Park, Seung Koo Lee
The Korean Journal of Gastroenterology.2019; 74(1): 46. CrossRef
A Case of Fungating Type Natural Killer Like T Cell Lymphoma of the Ascending Colon
Chang Seok Lee, Dong Hoon Shin, Cheol Woong Choi, Hyung Wook Kim, Dae Hwan Kang, Kyung Won Koh, Byoung Hoon Ji, Su Bum Park
The Korean Journal of Gastroenterology.2014; 64(4): 229. CrossRef

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Case Reports

A Case of Granular Cell Tumor of Cecum Misdiagnosed as Carcinoid Tumor: Kyu Hyun Cho, Jin Tae Jung, Jimin Han, Joong Goo Kwon, Eun Young Kim, Chang Ho Cho; Intest Res 2010;8(2):191-194. Published online December 30, 2010; DOI: https://doi.org/10.5217/ir.2010.8.2.191

Abstract PDF

Granular cell tumors (GCTs) are relatively rare submucosal tumors with an incidence of 10% in the gastrointestinal tract. In the gastrointestinal tract, the esophagus is the most common site for GCTs, while the colorectum is an uncommon site. GCTs are often found incidentally as small, submucosal tumors on esophagogastroduodenoscopy. On endoscopic ultrasonography (EUS), GCTs usually have a homogeneous hypoechoic pattern. EUS cannot adequately distinguish GCTs from carcinoid tumors. We report a case of a cecal GCT that was misdiagnosed as a carcinoid tumor by EUS and was treated by endoscopic mucosal resection, along with a review of the literature. (Intest Res 2010;8:191-194)

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Granular Cell Tumors of the Cecum: Report of Two Cases and Review of Literature
Nam Yeol Cho, Yu-Ah Choi, Gye Sung Lee
Keimyung Medical Journal.2020; 39(2): 86. CrossRef

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Postradiation Malignant Fibrous Histiocytoma of the Colon: A Case Report: Jin Young Yoon, Do Kyung Kim, Jae Hee Cheon, Chang Mo Moon, Jae Jun Park, Joo Won Chung, Eun Young Kim, Tae Hoon Kim, Chan Joo Lee, Eun Young Park, Sang Hoon Shin, Sung Pil Hong, Tae Il Kim, Nam Kyu Kim, Ho Guen Kim, Won Ho Kim; Intest Res 2010;8(1):75-79. Published online June 30, 2010; DOI: https://doi.org/10.5217/ir.2010.8.1.75

Abstract PDF: Post-radiation soft tissue sarcomas are recognized as rare complications of radiation therapy. The most common type of post-radiation soft tissue sarcoma is a malignant fibrous histiocytoma (MFH), which originates from mesenchymal cells with a predominance of histiocytes and fibroblasts. The two most common sites of occurrence for post-radiation soft tissue sarcomas are the chest wall and pelvic cavity. Post-radiation colorectal MFHs are extremely rare and all of the reported cases of post-radiation sarcomas have occurred ＞3 years after radiation therapy. Recently, we managed a case of colorectal MFH which developed in a 48-year-old male who had undergone a low anterior resection for rectal adenocarcinoma and had received chemoradiotherapy as adjuvant treatment. Twelve months after radiotherapy, a 4 cm mass was detected 8 cm superior to the anastomosis site on colonoscopic examination. A soft tissue sarcoma was suspected on pathologic examination of the biopsy specimen. Therefore, he underwent a Hartmann's operation and the final pathologic finding revealed MFH with a storiform pattern of tumor cells composed of pleomorphic, multinucleated giant cells. This is the first case of MFH that had a latency period ＜3 years (i.e., 1 year) between the time of radiotherapy and diagnosis. (Intest Res 2010;8:75-79)

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Original Articles

Clinicopathological Characteristics of Colorectal Cancer according to Microsatellite Instability: Ki Tae Suk, Hyun Soo Kim, Jin Hyung Lee, Bo Ra Kim, Moon Young Kim, Jae Woo Kim, Soon Koo Baik, Sang Ok Kwon, Yosep Chong, Mee Yon Cho; Intest Res 2009;7(1):14-21. Published online June 30, 2009

Abstract PDF: Background/Aims
Microsatellite instability (MSI) is associated with mutations in the DNA mismatch repair system and accounts for 10-15% of all cases of sporadic colorectal cancer (CRC). However, the characteristics and role of MSI as a marker for predicting the prognosis and therapeutic effect on CRC remain unclear. Methods: Between June 2003 and December 2007, 259 patients (males, 159 [61%]; age, 63 [±11] years) who underwent surgery for CRC were retrospectively enrolled. The clinicopathologic characteristics of patients with high-frequency MSI (MSI-H) CRC were reviewed and compared to patients with low-frequency MSI or microsatellite stable CRC. The patient characteristics and MSI-related data were recorded for the following variables: gender, age, clinicopathologic findings, chemotherapy response, recurrence, and survival. Results: MSI-H CRC was diagnosed in 30 patients (12%), low-frequency MSI CRC was diagnosed in 10 patients (4%), and microsatellite stable CRC in was diagnosed in 219 patients (84%). The MSI-H group exhibited the following characteristics: large size, right colon location, positive response to chemotherapy, low recurrence, longer survival, less neural invasion, poor differentiation, diffuse lymphoid reaction, and mucin pool formation. However, in the chemotherapy group (n=180), MSI-H was not a marker of longer survival. Based on Cox-regression analysis, stage IV CRC (OR=6.66; 95% CI, 2.24-53.00), MSI-H (OR=0.17; 95% CI, 0.04-0.73), and a positive response to chemotherapy (OR=0.02; 95% CI, 0.01-0.11) were related to mortality. Conclusions: MSI-H CRC had less neural invasion and diffuse lymphoid reaction. Further studies regarding the relationship between those pathologic findings and survival are needed. (Intest Res 2009;7:14-21)

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Cyclooxgenase-2 Expression in Chronic Inflammatory Bowel Disease: Comparing of Immunohistochemical Stain to Real-time PCR: Young Sook Park, Nam In Kim, Jun Seok Lee, Jeoung Ho Choi, Chae Young Im, Dae Won Jun, Yun Ju Jo, Seung Hwan Kim, Byung Kwan Son, Won Mee Lee, Eun Kyoung Kim; Intest Res 2008;6(2):128-134. Published online December 30, 2008

Abstract PDF: Background/Aims
This study compared the results of cyclooxygenase-2 (COX-2) expression in inflammatory bowel disease and tuberculous colitis as evident by immunochemical staining and real time polymerase chain reaction (PCR). Methods: Patients with ulcerative colitis (n=18), Crohn's disease (n=7), tuberculous colitis (n=7) and 10 normal controls were included. Biopsied colonic mucosa was simultaneously used for immunohistochemical staining and real time PCR. Results: Patients with inflammatory bowel disease and tuberculous colitis showed high COX-2 expression by both methods compared to the normal controls. In Crohn's disease patients, the real time PCR value correlated well staining grade; this correlation was not evident in ulcerative colitis patients. In real time PCR, grossly normal colonic mucosa in ulcerative colitis also showed higher expression of COX-2 than normal mucosa. Conclusions: Real time PCR value of COX-2 is more representative of inflammation state in inflammatory bowel disease than the value from immunohistochemical staining. (Intest Res 2008;6:128-134)

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The Incidence and Natural History of Perianal Fistulas in Korean Patients with Crohn's Disease: Ja Young Kim, Suk-Kyun Yang, Jeong-Sik Byeon, Seung-Jae Myung, Jae-Won Choe, Ji-Yun Jo, Dong-Hoon Yang, Yun Kyung Cho, Jin-Ho Kim; Intest Res 2006;4(1):22-31. Published online June 30, 2006

Abstract PDF: Background/Aims
We performed this study to investigate the incidence and natural history of perianal fistulas in Korean patients with Crohn's disease (CD). Methods: A total of 546 patients diagnosed with CD at Asan Medical Center were included. Results: Perianal fistulas occurred in 265 patients (48.5%), with 355 episodes. Eighty-two patients (15.0%) initially presented with perianal fistulas in the absence of other symptoms suggestive of CD. Out of 265 patients who developed perianal fistulas, 205 (77.4%) presented with perianal fistulas before, or at the time of, the diagnosis of CD. The cumulative incidence of perianal fistulas at 1, 5, 10, 20 years was 40.7%, 48.2%, 55.3% and 62.1%, respectively. Medical treatment was done in 30.7%, and surgery in 80.8% of perianal fistulas. The remission rate was 23.9% with medical treatment, and 83.6% with surgery. At least 1 recurrent fistula occurred in 77 patients (29.1%). The cumulative recurrence rate of perianal fistulas at 1, 5, 10, 20 years was 10.1%, 26.9%, 42.4% and 68.8%, respectively. Conclusions: The incidence of perianal fistulas in Korean patients with CD appears to be higher than that of Western patients. Also, the proportion of patients who develop perianal fistulas before the diagnosis of CD is very high. Therefore, we should consider the possibility of CD in patients with perianal fistulas to manage them properly, and thereby to reduce there complications. (Intestinal Research 2006;4:22-31)

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Expression of Human T cell-activating CXC Chemokines in inflammatory bowel disease: Byeong Gwan Kim, Ji Won Kim, Ji Bong Jeong, Geum Yeon Kwak, Kook Lae Lee, Young Soo Park, Na Young Kim, Dong Ho Lee, Joo Sung Kim, Hyun Chae Jung, In Sung Song; Intest Res 2004;2(2):58-64. Published online December 22, 2004

Abstract PDF: Background/Aims
Colonic epithelial cells are increasingly recognized as playing an important role in host defense against microorganisms in the intestinal lumen and in inflammatory responses. When human intestinal epithelial cells are stimulated with proinflammatory cytokines or infected with microbial pathogens, they up-regulate a program of proinflammatory genes whose products are chemoattractant neutrophils and monocytes. However, little is known about the regulated production of T-cell chemoattractants by the intestinal epithelium. Methods: We studied chemokine (IP-10, Mig, I-TAC) expression of the human colonic mucosa by using enzyme-linked immunosorbent assay. Results: Expression of T-cell chemokine (IP-10, Mig, I-TAC) was increased in the mucosa of patients with Crohn's disease and ulcerative colitis. The production level of T-cell chemokine (IP-10, Mig, I-TAC) was decreased in the mucosa of patients with Crohn's disease after remission. Conclusions: Our finding indicated that under inflammatory conditions, mucosal T-cell chemokine production increased and attracted inflammatory cells. This result suggests that, at least in an inflammatory process, T-cell chemokine (IP-10, Mig, I-TAC) play a role in the pathogenesis of inflammatory bowel disease. (Intestinal Research 2004;2:58-64)

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