title: Pseudomelanosis of the duodenum. Endoscopic and histologic observations on a unique case of pigmentation in the duodenum.
mesh_terms: D004386:Duodenum / Q000473:pathology; D004724:Endoscopy; D005260:Female; D006651:Histocytochemistry; D006801:Humans; D008875:Middle Aged; D010859:Pigmentation Disorders / Q000175:diagnosis* / Q000473:pathology