Giant Diverticulum of the Ascending Colon

Figure 1We report a rare case of a patient with a giant diverticulum of the ascending colon who presented with lower gastrointestinal bleeding. Giant diverticulum of the ascending colon is a rare complication of diverticular disease. To our knowledge, this is the first reported case of a wide-base giant diverticulum of the ascending colon complicating lower gastrointestinal bleeding. This is also the first report of the application of colonoscopy in the initial diagnosis of giant colonic diverticulum. The colonoscopic study shows the giant diverticulum with a wide-base opening, measuring 3 cm in diameter (arrowheads).

Figure 2Barium enema examination shows a solitary giant diverticulum of the ascending colon, approximately 9 × 7 cm in diameter.