Multiple Colonic Ulcers with Atypical Macroscopic Features Report of a Case

A 45-year-old man developed fever, abdominal pain and diarrhea after pacemaker-insertion. Barium enema and colonoscopy revealed transverse colon stenosis due to multiple round to oval ulcers with converging mucosal folds. Under the suspicion of scirrhus-type colon cancer, the transverse colon resection was performed. The resected specimen showed five Ul-IV round to oval ulcers on the tinea. Histochemical study revealed numerous iron-positive cells among the granulated tissue. From these observations, we finally made a diagnosis of ulcerative-type ischemic lesion of the colon at healing phase. We suspected that the cause of the lesion was thrombo-embolism of several vasa recta or marginal arteries.