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: HEART: Aortic and mitral valve: Prosthetic Valve: Gross nice view of two prostheses both caged steel balls with wrapped struts can appreciate obstructive problem with this type valve in mitral position