Colonic carcinoma associated with an abnormal collagen table. Collagenous colitis

A case of cecal adenocarcinoma with the typical histopathologic features of collagenous colitis throughout the resected colon is described in a 67-year-old woman. Collagenous colitis has not previously been reported in association with adenocarcinoma of the colon and the relationship of these findings appears to be unprecedented. A review of 100 randomly selected Duke's B adenocarcinomas of the colon revealed no similar case.