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: Total Anomalous Pulmonary Venous Return: Gross fixed tissue view of pulmonary venous sinus draining into coronary sinus in right atrium now ligated and surgical opening into left atrium