Abstract
Colonic diverticula and colonic polyps are two of the most common causes of lower gastrointestinal (GI) hemorrhage [1, 2]. Colonic polyps or carcinoma can arise from the normal mucosa near or within a diverticulum [3]. Case reports describe colonic tumors found within a diverticulum, e.g., colon polyps [4], carcinoids [5], lymphoma [6], and adenocarcinoma [3, 7–13]. Rarely adenocarcinoma in a diverticular colonic abscess has been reported [14, 15]. None of the cases has presented as hematochezia or been associated with diverticular bleeding. We report a case of malignant colon polyp within a diverticulum presenting as diverticular hemorrhage.
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