PEIR Digital Library

Welcome to the Pathology Education Informational Resource (PEIR) Digital Library, a multidisciplinary public access image database for use in medical education.

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GROSS: CARDIOVASCULAR: VASCULATURE: Superior mesenteric artery: Atherosclerosis: Gross natural color opened aorta close-up of celiac axis and superior mesenteric arteries openings with granular lesions nearly occluding completely most unusual