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: CARDIOVASCULAR: VASCULATURE: Artery: Polyarteritis Nodosa Healed Lesion: Micro high mag H&E not the best photo in the world but an excellent example of this lesion with partial destruction of media and scar