A 57-year-old woman was referred to our hospital with melena and anemia. Abdominal computed tomography revealed swollen adrenal glands. After ingesting 24 mg of Sennoside to prepare for a radio-isotope examination, she developed abdominal pain and hypotension. After we performed an emergency sigmoid-colostomy, she was free from hypotension and abdominal pain. An examination by colonoscopy via the colostomy revealed longitudinal colonic ulcerations.
We performed a left colectomy, hysterectomy and partial resection of the small intestine, due to the possibility of direct invasion. We found 3 lines of longitudinal ulceration 25 cm long located 20 cm above the sigmoid colon cancer. We diagnosed her as having obstructive colitis.