Diagnosis of the Depth of Invasion of Colonic Cancer, from Radiologic and Endoscopic Viewpoints Tadahiko Fuchigami 1 1Institute of Gastroenterology, Matsuyama Red Cross Hospital Keyword: 大腸癌 , 深達度診断 , 発育進展 , X線検査 , 内視鏡検査 pp.1157-1167
Published Date 1993/10/25
DOI https://doi.org/10.11477/mf.1403106281
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 To evaluate the hypothesis that vertical cancer invasion may progress with the size of tumor, correlation between the depth of invasion and the size of tumor was analyzed on 382 colonic cancers less than 40 mm in size and 49 colonic adenomas by radiologic, endoscopic and pathologic examinations. Statistical analysis was done by regression analysis. Macroscopic features were classified into the following four types depending on the existence of adenomatous components: Pp type; pedunculated elevation, Ps type; sessile elevation, PD type; depressed lesion with surrounding elevation or elevated lesion with a central depression, FD type; flat or depressed lesion without surrounding elevation. Within each group, the size and the depth of invasion were strongly correlated. PD type lesions had tendency to infiltrate rapidly with their enlargement, however almost all the similar shaped minute lesions were diagnosed as adenomas. Therefore, the developmental process from m cancer to advanced cancer in this type could not be elucidated. Within each group of the macroscopic classification which were classified by the existence of adenomatous components, the size of the lesions was an important index to evaluate the depth of invasion. The nature of mucosal surface of Ps type lesions and change in the surrounding elevation of PD type lesions by pneumatic expansion may contribute the diagnostic accuracy of the depth of invasion.

Copyright © 1993, Igaku-Shoin Ltd. All rights reserved.


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