title: Prospective diagnosis of choledocholithiasis.
abstract: Choledocholithiasis was detected by ultrasound in 11 of 87 patients (13%) overall, including 11 of 56 patients (20%) who had dilated ducts. Choledocholithiasis occurred with a normal caliber common bile duct in 31 of 87 patients (36%), and choledocholithiasis occurred without stones in the gallbladder in seven of 66 patients (11%). Biliary ultrasound plays a limited role in the exclusion of choledocholithiasis.
mesh_terms: D002769:Cholelithiasis / Q000175:diagnosis; D003137:Common Bile Duct Diseases / Q000175:diagnosis; D004108:Dilatation, Pathologic / Q000175:diagnosis; D042882:Gallstones / Q000175:diagnosis*; D006801:Humans; D011300:Preoperative Care; D011446:Prospective Studies; D014463:Ultrasonography