A rare manifestation of perforated diverticulitis: parastomal subcutaneous abscess.

Perforation is a serious complication of diverticular disease. The sigmoid is the main affected anatomic site of perforated diverticulitis and sigmoid resection followed either by Hartmann procedure or primary anastomosis are the standard surgical approaches. Surgery, however, does not cure diverticular disease. About 50% of patients have residual diverticula. The morbidity of residual diverticula appears to be low [1]. However, adequate follow-up studies on recurrent diverticulitis after surgery are lacking. We report a rare case of recurrent perforated diverticulitis in the subcutaneous tissue in proximity of the colostomy after a Hartmann procedure for perforated diverticulitis of the sigmoid colon.