2016 Volume 36 Issue 1 Pages 121-124
A fifty-five-year-old man was admitted to our hospital with back pain and right lower limb pain with redness, swelling and tenderness in the right abdominal wall. An abdominal X-ray film showed free air image in the hepatic flexure and the right abdominal wall. CT findings showed wall thickness from the terminal ileum to the ascending colon, and a retroperitoneal abscess and a subcutaneous emphysema that infiltrated the iliopsoas, transverse obliquus muscle and latissimus dorsi. The laparotomy showed a perforation 2cm in diameter in the ascending colon. After resection of the ascending colon and cecum, drainage was performed. The pathological findings showed inflammation, fibrosis and abscess formation around the perforated diverticulum, and many diverticula in the appendix, cecum and ascending colon.