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Total colonoscopy has been carried out 4, 282 times in 3, 607 outpatients at an ano-proctology clinic. The lesions detected were as follows ; 1, 075 polyps (29.8%), 164 carcinomas (4.5%), 211 IBD (5.8%) and 233 miscellaneous cases (6.6%) accounting for 46.7% of the 3, 607 cases. Polyps resected endoscopically were widely distributed up to the right side of the colon in 19.5% Colonic carcinomas were found more frequently in the rectum and sigmoid colon (133 lesions, 77.3%). The ratio of advanced carcinoma was relatively high in the right side of the colon (12/20, 60 %) compared with the left side of the colon (57/147, 38.8%). Therefore, the importance of total colonoscopy should be emphasized in order to detect lesions with possible malignant potential at an ano-proctology clinic.
日本大腸肛門病学会の論文