Dilated Biliary Ducts

Question 1

common hepatic duct internal diameter

Answer 1

The common hepatic duct has an internal diameter of <4 mm.

Question 2

what size of duct requires investigation

Answer 2

duct diameter of 5 mm is borderline, and 6 mm requires further investigation.

Question 3

common bile duct meaurements

Answer 3

Generally a duct >6 mm in diameter is considered borderline; >10 mm is dilated.