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: Peptic Ulcer: Gross natural color close-up view two ulcers one is more chronic nice pulling in of rugae toward ulcer very typical lesions the more chronic lesion may be in the duodenum picture too close to tell