Role of Radiology in Diagnosis of Early Colorectal Cancer Masaaki Matsukawa 1 , Takashi Negoro 1 , Yoshiki Usui 1 1Department of Internal Medicine, Juntendo University School of Medicine pp.251-257
Published Date 1986/3/25
DOI https://doi.org/10.11477/mf.1403110154
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 This study was undertaken to evaluate the adiological diagnosis of polyps and carcinomas of the colon ranging from 0.6cm to 3.0cm in size. Lesions less than 0.6cm were mostly benign or, on rare occasions, early carcinomas that are limited to the mucosa. Lesions more than 3.0cm in size were mostly advanced carcinomas. Lesions were classified by modified Maruyama's classifications as follows, type “a” (lesion with long stalk), type “b” (lesion with short stalk or sessile esion), type “c” (Plaque-like lesion), type “d” (lesion with central depression) and type “e” (the others). Type “a” lesions were either benign or early carcinomas but these could not be disting uished radiologically. type “b” and “c” lesions more than 1.0cm in diameter, and with indentation of colonic wall, had a great probability of being early carcinomas. Type “d” lesions with a slight depression were either benign or early carcinomas but type “d” lesions with a severe depression were all advanced carcinomas. Type “e” lesions were mostly villous tumors so that it was dificult to diagnose whether these were carcinomas or not.

Copyright © 1986, Igaku-Shoin Ltd. All rights reserved.


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