Diverticulitis

An abnormal endoscopic view of the sigmoid colon (ie, colonoscopy) shows multiple oval-shaped pockets (diverticula) distorting the normal tissue. The central diverticulum is oozing blood. These findings are typical of diverticulitis.

(From MH Spiro, Clinical Gastroenterology, 4 ed, 1993, McGraw-Hill, Pl. 106; with permission of the author.)