Melanin-like pigmentation of the duodenum.

Minocha, A; Fearneyhough, P K; McClave, S A; Parker, J C · Am J Gastroenterol · 1995

case_report · Level V

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Abstract

We report a case of brown-black pigmentation of the duodenum found in an elderly female during endoscopy for unrelated reasons. Melanin-like pigmentation of the duodenum is a rare endoscopic entity of uncertain etiology and significance. Various theories related to the etiology and pathogenesis, as well as histochemical and electron microscopic characteristics, are discussed.

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