A CASE OF RECTAL CANCER COMPLICATING ULCERATIVE COLITIS

Abstract

A 52-year-old female with a history of ulcerative colitis over 25 years admitted to our hospital because of bloody stool. Barium enema and colonoscopic findings showed advanced cancer and early cancer in the rectum. Total coloprotectomy was performed. Histological examination revealed two carcinomas of well dif f erenciated adenocarcinoma in the rectum and two epithelial dysplasia in the cecum and the ascending colon. Dissecting microscopic study of the resected specimen was performed. There were several lesions. It was difficult to differentiate epithelial dysplasia from chronic inflammatory changes of longstanding ulcerative colitis.