title: Ultrasound diagnosis of common bile duct dilatation.
abstract: The use of ultrasound in the differential diagnosis of obstructive jaundice has been previously reported. Although common bile duct dilatation has been demonstrated, criteria for its accurate identification have not been stressed. This report describes findings and relationships helpful in recognition of a dilated common bile duct. It is important to identify this structure, since it could otherwise be confused with surrounding vessels.
mesh_terms: D000230:Adenocarcinoma / Q000175:diagnosis; D000368:Aged; D002769:Cholelithiasis / Q000175:diagnosis; D003135:Common Bile Duct; D004108:Dilatation, Pathologic / Q000175:diagnosis; D005260:Female; D042882:Gallstones / Q000175:diagnosis; D006801:Humans; D008297:Male; D008875:Middle Aged; D010190:Pancreatic Neoplasms / Q000175:diagnosis; D014463:Ultrasonography