title: Ultrasonic demonstration of intraductal biliary neoplasms.
mesh_terms: D002759:Adenoma, Bile Duct / Q000175:diagnosis; D000368:Aged; D001650:Bile Duct Neoplasms / Q000175:diagnosis*; D002285:Carcinoma, Intraductal, Noninfiltrating / Q000175:diagnosis; D003138:Common Bile Duct Neoplasms / Q000175:diagnosis; D005260:Female; D005706:Gallbladder Neoplasms / Q000175:diagnosis; D006801:Humans; D008297:Male; D014463:Ultrasonography