A 73-year-old woman with a history of perforated diverticulitis in the sigmoid colon and chronic kidney disease was brought to our hospital with acute left lower abdominal pain. Abdominal computed tomography showed descending colitis. Contrast enema and colonoscopy revealed that the entire circumference of the descending colon was constricted. Abdominal angiography showed obstruction at the root of the inferior mesenteric artery. The patient was diagnosed with chronic ischemic changes combined with chronic diverticulitis. Proctosigmoidectomy (Hartmann procedure) was performed, and the postoperative course was uneventful. The patient has experienced no recurrence or complications to date.
