Papilla of Vater Sphincterotomy

**Semantic type:** Therapeutic or Preventive Procedure

**Definition:** Transection of the biliary sphincter (sphincter of Oddi) of the ampulla of Vater that lies within the major duodenal papilla.

**Synonyms:** - Major Duodenal Papilla Sphincterotomy - Sphincterotomy of papilla of Vater