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: LUNG: LUNG, ALVEOLAR WALL, labeled.; LUNG, ALVEOLAR WALL.Cs & YELLOW ARROWS ARE IN ALVEOLAR AIR SPACE. YELLOW ARROWS POINT AT TYPE 2 PNEUMOCYTES. B= BLOOD VESSEL. CYAN ARROW = MACROPHAGE