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: GASTROINTESTINAL: Stomach: Mucosal Laceration: Gross natural color close-up view of large ulcer just below esophageal junction in lesser curvature case of 76yo M with rheumatoid arthritis and chronic interstitial nephritis presumably due to aspirin