Gallstone fistula from gallbladder or bile duct

A gallstone is a stone formed within the gallbladder out of precipitated bile components. The term cholelithiasis may refer to the presence of gallstones or to any disease caused by gallstones, and choledocholithiasis refers to presence of migrated gallstones within bile ducts. [Source: Wikipedia ]

Synonyms
Choledochoduodenal fistula
May Cause
Biliary-enteric fistula
Choledochoduodenal fistula