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 3-6: Micro low mag H&E atypical grade three lesion small artery medial thickening and intimal thickening with artery-in-artery type lesion arteriole size vessel nearby has intense eosin staining representing either fibrinoid necrosis or fibrin deposition 4y