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Pigment in Prostatic Epithelium

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The presence of pigment is a common finding in prostatic secretory epithelium. The pigment is usually granular and may be yellow-brown, brown, gray, blue-purple, or almost black. The granules may be apical or subnuclear. The amount and the presence of pigment is highly variable within a biopsy core. Based on the biochemical properties and staining characteristics, the pigment appears to be Lipofuscin and consists of oxidized lipids.

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