Intestinal Research

Sang Jeong Yoon

1 Article

Clinicopathological Characteristics of Colon Cancer Diagnosed at Primary Health Care Institutions: Sang Hyun Park, Chi Wook Song, Yun Bae Kim, Young Sun Kim, Hwang Rae Chun, Jung Hyun Lee, Won Jong Seol, Hyung Sun Yoon, Myung Kwon Lee, Jong Hyup Lee, Choon Sang Bhang, Jae Hyung Park, Ji Young Park, Byung Hun Do, Young Dae Park, Sang Jeong Yoon, Chan Wook Park, Su Mi Yoon, Jong Hwan Choi, Ki Chul Shin, Dong Hoon Ko, Young Jin Kim, Dong Choon Seol; Intest Res 2014;12(2):131-138. Published online April 29, 2014; DOI: https://doi.org/10.5217/ir.2014.12.2.131

<b>Background/Aims</b><br/>

The purpose of this study was to evaluate the clinicopathologic characteristics of colon cancers detected at the SOK Sokpeynhan Internal Medical Network, a nationwide system of primary health care institutions.

Methods

We analyzed 579 colon cancer patients diagnosed using colonoscopy at the SOK network from January 2011 through December 2012. Cancers from the rectum to the splenic flexure were classified as left colon cancer. Patients over 65 were classified as senior.

Results

The mean age (±SD) of subjects was 60.9±10.5 years and 61.1% were men. More than one quarter (28.2%) of patients were asymptomatic. The prevalence of left colon cancer was higher (77.9%) than that for right colon cancer. The most frequent macroscopic and histologic types were depressed (58.9%) and moderately differentiated adenocarcinoma (52.2%), respectively. Asymptomatic subjects displayed protruding or well differentiated adenocarcinoma, while symptomatic patients were more likely to display depressed or moderately differentiated adenocarcinoma (P<0.05). The mean age of the right colon cancer group was higher than that for the left colon cancer group (P<0.05). Among symptomatic patients, the most frequent symptoms were bloody stool for patients with left colon cancer and abdominal discomfort for patients with right colon cancer (P<0.05). The prevalence of depressed cancer was higher in older subjects as compared to younger subjects (P<0.05). The prevalence of right colon cancer tended to increase with age, although this difference did not achieve statistical significance (P>0.05).

Conclusions

Study results indicated an increase of colon cancer amongst younger demographics in recent years. The effectiveness of colonoscopy screening was also evident, as asymptomatic patients demonstrated frequent findings of well differentiated adenocarcinomas. Study results also suggested a need for closer examination of older patients, as right colon cancer tended to increase with age.

Citations

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