Normal common bile duct in adult

Abstract               Background: Ultrasonically diameter of common bile duct has been identified at porta hepatis and evaluation done. Size is of the common bile duct is important to diagnose obstruction by internal calculus or tumor from external. Method: 103 (51 male and 52 females) normal adults were included in the study group. Sonologist measured the diameter of common bile duct at porta hepatis and documented. Parameters like age, height, weight and body surface area were correlated with common bile duct. Results: Mean diameter of portal vein was observed 9.20 mm. Though no correlation was identified with any parameters such as height, and body surface area but it is in the same accord to previous studies. Conclusion: Ultrasonic evaluation of common bile duct is important, valuable and diagnostic in most of the biliary disorders such as cholelithiasis and obstruction in jaundice. No parameter like age, height or weight has any impact on size of diameter of common bile duct

Key Word: bile duct.