title: Dye studies by cannulation of ampulla of Vater through a duodenoscope.
mesh_terms: D000328:Adult; D014670:Ampulla of Vater; D002404:Catheterization; D002765:Cholecystography; D004386:Duodenum; D004724:Endoscopy; D006801:Humans; D007565:Jaundice / Q000000981:diagnostic imaging*; D008297:Male; D008722:Methods; D010195:Pancreatitis / Q000000981:diagnostic imaging*