title: Reverse guidewire anchoring of the papilla for difficult cannulation due to a periampullary diverticulum.
authors.affiliation: Division of Gastroenterology and Hepatology, Medical University of South Carolina, Charleston, South Carolina, USA.
authors.forename: B Joseph
authors.initials: BJ
authors.lastname: Elmunzer
authors.affiliation: Minnesota Gastroenterology, St. Paul and Minneapolis, Minnesota, USA.
authors.forename: Nicholas C
authors.initials: NC
authors.lastname: Boetticher
mesh_terms: D000369:Aged, 80 and over; D014670:Ampulla of Vater; D002404:Catheterization / Q000379:methods*; D002760:Cholangiopancreatography, Endoscopic Retrograde / Q000379:methods*; D042883:Choledocholithiasis / Q000150:complications / Q000175:diagnosis / Q000601:surgery*; D004240:Diverticulum / Q000150:complications* / Q000175:diagnosis; D004378:Duodenal Diseases / Q000150:complications* / Q000175:diagnosis; D004384:Duodenoscopy / Q000379:methods*; D006801:Humans; D008297:Male