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Perforation of sigmoid diverticulum following endoscopic polypectomy of an adenoma

Colonic polyps or carcinomas located within a colonic diverticulum are very rare phenomena. There are a few reports in the literature describing adenocarcinoma arising within colonic diverticulum. Endoscopic resection of the polyp poses a risk of perforation because of the lack of muscular coats in the diverticulum. Therefore, special care should be taken in the treatment of such patients.