title: Gastrointestinal: adenoma of the ampulla of Vater.
mesh_terms: D000236:Adenoma / Q000473:pathology*; D014670:Ampulla of Vater / Q000473:pathology*; D002760:Cholangiopancreatography, Endoscopic Retrograde; D003138:Common Bile Duct Neoplasms / Q000473:pathology*; D004384:Duodenoscopy; D006801:Humans