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common bile duct
A duct formed by joining of the hepatic & cystic bile ducts.
Empties into: the duodenum at the duodenal papilla.
Structure:
Normal diameter: (adults)
1) < 6-7 mm
2) < 8 mm to 1 cm after cholecystectomy
3) baseline diameter of 4 mm increases by 1 mm for each decade age > 40 years [2]
Pathology:
- see dilated bile duct
Related
dilated bile duct
General
bile duct
References
- Stedman's Medical Dictionary 26th ed, Williams &
Wilkins, Baltimore, 1995
- NEJM Knowledge+ Gastroenterology