The confluence stone. A hazardous complication of biliary tract disease.
D000368:Aged; D001660:Biliary Tract Diseases / Q000150:complications*; D002758:Cholangiography; D002769:Cholelithiasis / Q000150:complications*; D003135:Common Bile Duct; D003549:Cystic Duct; D042882:Gallstones / Q000150:complications; D006500:Hepatic Duct, Common; D006801:Humans; D008297:Male