Ulcerative Colitis Accompanied by Carcinoma, Carcinoma in Adnoma, Adenomas and Carcinoid of the Colon, Report of a Case Yoichi Ajioka 1 , Hidenobu Watanabe 1 , Satoru Shibuki 2 1The First Department of Pathology, Niigata University, School of Medicine 2Cancer Detection Center of Miyagi Cancer Society pp.951-956
Published Date 1986/9/25
DOI https://doi.org/10.11477/mf.1403110210
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 The patient, a 63 year-old man whose right sided colon had been resected 34 years ago. At the time, evidence of ulcerative colitis had not been noticed. When ulcerative colitis with rectal cancer was diagnosed, he underwent a descendo-sigmoido-proctectomy operation. Histological examination revealed chronic active phase of ulcerative colitis, a diffusely infiltrative type advanced signet-ring cell carcinoma in the rectum, a carcinoma in adenoma, a tubular and a tubulovillous adenoma with dysplasia manifested macroscopically by fiat plaque-like lesions in the rectum and descending colon, and a carcinoid in the distal rectum. It seems to be important to observe and define the range of atypism in immature reactive epithelium when it is in an inflammatory condition, and to accumulate more knowledge of the characteristics of overt neoplastic lesions accompanied by ulcerative colitis or other inflammatory bowel diseases previous to dyspJasia.

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