Rectal Carcinoma Assosiated with Ulcerative Colitis. A Case Report and a Review of the Reported Case in Japan.

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A 35 year-old man, who had ulcerative colitis (total colitis, remitting and relapsing type) since the age of 17, was reexamined by colonoscopy because of tenesumus and loss of body weight. The endoscopic examination revealed an advanced carcinoma in the rectum. Total colectomy with ileo-rectal anastomosis was performed. Eight months after the operation he died of extensive metastasis in the bones. Histological exmination showed that the tumor was partly poorly differentiated adenocarcinoma and partly signet-ring cell carcinoma, and that colonic mucosa was mostly in a remission stage. A detailed histopathological examination of the resected specimen showed 2 patchy flat lesions of low grade dysplasia in the sigmoid colon apart from the rectal cancer.<BR>The stainings by high iron-diamin alcian blue (HID-AB) appeared to be an appreciable help for detecting dysplasia.<BR>104 cases have been accumulated and analysed in the review of the Japanese literature of the colorectal cancer assosiated with ulcerative colitis.
日本大腸肛門病学会の論文