대한대장항문학회

Purpose : To determine whether hyperplastic polyps found in the distal colon are<br>associated with proximal adenomas, and to judge whether patients with distal<br>hyperplastic polyps found during sigmoidoscopy might benefit from full colonscopy.<br>Methods : We retropectively analyzed 2333 consecutive patients who were examined<br>with colonoscopy between January 1991 and December 1994. Result : 247 of 2333<br>patients (10.6%) had one or more colonic polyps. The prevalence of adenomatous polyps<br>alone was 72.5%, hyperplastic polyps 22.7%, both 0.52%. The proportion of patients with<br>distal hyperplastic polyps and proximal adenomatous polyps (4.4%) was not significiantly<br>different from the proportion of those without distal hyperplastic polyps (1.6%). Patients<br>with distal adenomatous polyps, on the other hand, were significantly more likely to<br>have proximal adenomatous polyps than those without distal adenomatous polyps.<br>Conclusions : Distal hperplastic polyps are not strong predictors of risk for proximal<br>adenomatous polyps. Based on the results of this study, we do not believe that finding<br>a hyperplastic polyp during sigmoidoscopy justifies doing a full colonoscopy to search<br>for proximal adenomatous polyps.<br>