title: Retained calculi within the biliary ductal system.
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D002404:Catheterization; D002758:Cholangiography; D002763:Cholecystectomy; D002765:Cholecystography; D002769:Cholelithiasis / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000453:epidemiology / Q000601:surgery*; D003135:Common Bile Duct / Q000601:surgery; D005260:Female; D005471:Fluoroscopy; D042882:Gallstones / Q000000981:diagnostic imaging / Q000601:surgery; D006801:Humans; D008297:Male; D008722:Methods; D008875:Middle Aged; D011183:Postoperative Complications / Q000601:surgery; D014481:United States