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: Prosthetic Valve: Gross natural color view of dilated left ventricle with focal marked endocardial thickening and large Bjork Shiley valve in mitral and small Bjork Shiley in aortic valve