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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DIAGRAM: GASTROINTESTINAL: GI: ARTERY: Pathogenesis of Atherosclerosis - 8 of 13; In the presence of hyperlipidemia, macrophages accumulate lipid and become foam cells. Some foam cells originate from smooth muscle cells that have accumulated lipid but the majority are derived from macrophages. The continuing attachment