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: RESPIRATORY: Lung: Arteriosclerosis Grade 3: Micro med mag elastic van Gieson small artery without medial hypertrophy but with marked intimal thickening reducing lumen by about 90% 4yo male primary pulmonary hypertension CHA90 14