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Case Reports
. 2013 Jun;21(3):261-3.
doi: 10.1177/1066896912468212. Epub 2012 Dec 5.

Melanosis coli in hyperplastic polyps and adenomas

John D Coyne  1
Affiliations
Case Reports

Melanosis coli in hyperplastic polyps and adenomas

John D Coyne. Int J Surg Pathol. 2013 Jun.

Abstract

Melanosis coli is a well-known occurrence in colonic biopsies. The condition is, however, reportedly absent in both neoplastic and hyperplastic colonic polyps. Herein, we describe its occurrence in 10 hyperplastic colonic polyps, some of which showed melanosis in adjacent biopsied mucosa, and 2 colonic adenomata.

Keywords: adenomata; hyperplastic polyps; melanosis coli.

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