Abstract
A 61–year–old man admitted after 1 month of chronic abdominal pain and gas accumulation was found in abdominal computed tomography (CT) to have a tumor–like sigmoid colon lesion and an enlarged proximal intestine. Contrast study showed the sigmoid colon to be obstructed. When conservative treatment was inffective, we conducted sigmoidectomy. The resected specimen showed diverticulosis and sigmoid colon stenosis due to wall thickening. Pathological examination showed normal mucosa, a thickened muscular layer, and inflammatory cell infiltration. No malignancy was seen. We determined that stenosis may have been caused by wall thickening due chronic diverticulitis changes. Chronic diverticular disease with intestinal obstruction rarely involves surgery.
