Cholesterol crystal embolism in an adenomatous colonic polyp

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