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Clinicopathologic and Immunohistochemical Features of the Colorectal Carcinomas, Complicating Crohn's Disease Satoshi Yao 1 , Akinori Iwashita 1 , Taku Nishimura 2 , Akira Motomura 2 , Tsuneyoshi Yao 2 1Department of Pathology, Fukuoka University Chikushi Hospital 2Department of Gastroenterology, Fukuoka University Chikushi Hospital Keyword: Crohn病 , 大腸癌 , p53 , Ki-67 pp.1047-1058
Published Date 2002/7/25
DOI https://doi.org/10.11477/mf.1403104507
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 We reviewed the clinicopathologic and immunohistochemical findings of four cases of Crohn's disease (CD)-related colorectal adenocarcinoma. Combining our four cases with the previously described eleven case reports in the Japanese literature, we discussed the clinicopathologic features of the fifteen patients with CD-related colorectal adenocarcinoma as follow; 1. The mean age at the diagnosis of colorectal carcinoma was 52.7 years old. 2. The mean period of CD suffered before the diagnosis of colorectal carcinoma was 15.2 years. 3. All of the colorectal carcinomas were located in the CD-involved area. And four colorectal carcinomas were located near the fistula. 4. All of the fifteen colorectal carcinomas were solitary. 5. One case had dysplasia adjacent to CD-related colorectal adenocarcinoma. 6. Histologically, 46.7% of CD-related colorectal adenocarcinomas were mucinous carcinomas. 7. Immunohistochemically, three mucinous carcinomas in our series were strongly positive for p53 staining.

 In conclusion, a long period of colonic inflammation caused by CD, was considered to be associated with the carcinogenesis of colorectal carcinoma. Although sporadic mucinous carcinomas rarely reveal p53 overexpression, three CD-related mucinous carcinomas revealed p53 overexpression in the present study. These results suggested that p53 abnormalities played an important role in CD-related colorectal adenocarcinoma.


Copyright © 2002, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1219 印刷版ISSN 0536-2180 医学書院

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