twelve of these patients exhibited severe colonic complications : four perforations ( 1 perforated diverticulitis of the sigmoid , 1 perforation of the cecum during cytomegalovirus infection , 2 cases of ischemic colitis ) , 5 cases of ischemic colitis without perforation , and 3 patients with erosive colitis .
C0162529
ischemic colitis
C0009319
colitis