Endoscopic sphincterotomy in carcinoma of the ampulla of Vater.
D014670:Ampulla of Vater / Q000601:surgery; D002291:Carcinoma, Papillary / Q000601:surgery*; D002760:Cholangiopancreatography, Endoscopic Retrograde; D003138:Common Bile Duct Neoplasms / Q000175:diagnosis / Q000601:surgery*; D004724:Endoscopy; D006801:Humans