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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HISTOLOGY: CARDIOVASCULAR: AORTA: Dissecting Aneurysm Chronic: Micro low mag H&E micrograph shows adventitia dissection channel and inner media with thickened intima which may be a previous dissection channel