Sonolucent biliary cast preventing endoscopic sphincterotomy.
D014670:Ampulla of Vater / Q000601:surgery*; D001652:Bile Ducts / Q000473:pathology*; D005260:Female; D042882:Gallstones / Q000473:pathology / Q000601:surgery*; D006801:Humans; D008875:Middle Aged; D009803:Sphincter of Oddi / Q000601:surgery*