[Carcinoma of the large intestine following ureterosigmoidostomy in a patient with bladder exstrophy].

The paper reports a case of intestinal occlusion due to adenocarcinoma of the large intestine as a sequel to ureterosigmoidostomy for exstrophy of the bladder which was subsequently converted to ureteroileocutaneostomy. Inadequate follow-up did not allow an early diagnosis to be made. The authors underline the need for annual colonoscopy in all patients suffering from or with previous ureterosigmoidostomy given the high incidence of malignant transformation of the colon.