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: Rheumatoid Aortitis: Micro low mag elastic van Gieson focal area of missing elastic fibers in media not diagnostic of course 65yo man with ankylosing spondylitis and mitral and aortic valve insufficiency