1. Presented by Elizabeth Montgomery, M.D. and prepared by Walter Klein, M.D.

Biopsies of the splenic flexure of a 74-year-old white male with ischemic cardiomyopathy, and an ejection fraction of 15%. His hospital course was complicated by acute renal failure and heme- positive stools. Colonoscopy revealed mucosal erythema, friability and patchy ulceration at the splenic flexure.

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