[Cholesterol crystal embolisms in adenomatous polyposis coli]

Cholesterol crystal embolism is a serious complication of atherosclerosis responsible for renal, cutaneous and less often digestive manifestations. We report a case of cholesterol crystal embolization in an adenomatous colonic polyp with foci of adenocarcinoma in a patient with an abdominal aortic aneurysm taking anticoagulant therapy. This case shows that cholesterol crystal embolization may be diagnosed by microscopic examination of a colonic polyp.