1. Five Years' Experience of the Endoscopic Examination of the Lower Large Bowel at the Human Dock

概要

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The endoscopic examination of the lower large bowel has been done in our human dock clinic on 4102 cases, 2934 males and 1178 females for these 5 years. The subjects in this series were restricted to the public school teachers. The age ranged from 26 to 71 years old and 90% of them were in the 5th and 6th decades. Using a rigid or flexible sigmoidoscope, 238 lesions were detected, 219 of which were resected and examined histologically. The results were as followes: cancer 10 (early cancer 6), adenoma 122, carcinoid 5, lymphangioma 1, metaplastic polyp 44, inflammatory polyp 13, rectal endometriosis 1, healed ulcer of sigmoid 2, congenital annular membranous stricture of rectum 1, colonic melanosis 20 and unresected polypoid lesions 19. The incidence of all lesions had a tendency to rise with aging. The adenoma, most frequently encountered (2.68%), were various in size, histological features and grade of atypicality. The cancer incidence was 0.24%, which was a value of the usage of the endoscope in the examination of the lower large bowel at the human dock. Additional digital examination of the rectum was also beneficial to find the small submucosal lesions such as carcinoid.
日本大腸肛門病学会の論文