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: MUSCULOSKELETAL: BONES: JOINTS: Bone, thorax, rib: Multiple Myeloma: Gross natural color close-up view of cross sectioned rib lesion showing white neoplastic lesion with hemorrhagic center