A Rare Case of Duodenal Pseudomelanosis

Abstract

A black-spotted duodenal mucosa was observed during endoscopy of a man with several comorbidities including hypertension and end-stage kidney disease. Histopathological examination revealed pigment-laden macrophages in the lamina propria of the duodenal villi, which was consistent with duodenal pseudomelanosis.

Keywords

• pseudomelanosis
• duodenal
• duodeni
• pigmentation
• iron
• endoscopy