CHORUS
Collaborative Hypertext of Radiology
Liver and biliary system
About CHORUS
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common bile duct
- by cholangiography (xray):
mid-CBD, 2-3 cm above ampulla
- normal: 3-9 mm
- abnormal: 10 mm
- by ultrasound:
CBD or CHD, anterior to portal vein
- normal: 3-6 mm (10 mm if post-surgical)
- abnormal: 7 mm
Charles E. Kahn, Jr., MD - 2 February 1995
Last updated: 1 October 2013
Copyright © 2013, Charles E. Kahn, Jr.
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