Needle-knife precut for ERCP cannulation over a guidewire causing intramural incision in the papilla of Vater.
García-Cano
Jesús
J
D014670:Ampulla of Vater / Q000601:surgery*; D002404:Catheterization / Q000379:methods; D002760:Cholangiopancreatography, Endoscopic Retrograde / Q000379:methods*; D042883:Choledocholithiasis / Q000601:surgery; D006801:Humans; D016717:Sphincterotomy, Endoscopic / Q000379:methods*