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: Mitral Insufficiency Secondary To Ventricular Dilation: Gross natural color excised valves showing thickening of distal halves and loss of free margin severity of disease not readily evident from these valves but was sufficient to indicate surgical removal