Elsevier

European Journal of Cancer

Volume 31, Issues 7–8, July–August 1995, Pages 1118-1120
European Journal of Cancer

The problem of de novo colorectal carcinoma

https://doi.org/10.1016/0959-8049(95)00251-DGet rights and content

Abstract

From April 1985 to March 1995, colonoscopy was carried out at our institution in 24 059 patients, 31800 times in symptomatic and/or asymptomatic average risk persons. 184 submucosal invasive carcinomas were detected. Unlike protruding-type lesion, the depressed-type invades the submucosal layer, even though the size is within 10 mm. The depressed type of invasive carcinoma accounted for 20 lesions, and represented 10.9% (20 of 184) of all the invasive carcinomas. The pit pattern of depressed-type lesions shows a small round pit (type IIIs pit pattern) and that of carcinoma lesions shows the irregular pit and non-structure (type V pit pattern).

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