Morphological And Morphometric Study Of Extrahepatic Biliary Apparatus - A Cadaveric Study

Abstract

Introduction- Extrahepatic Biliary apparatus consists of gall bladder, cystic duct, right and left hepatic ducts, common hepatic duct and common bile duct. Knowledge of anatomy and associated variations related to EHBA is fundamental in the order to avoid error while performing MRCP by radiologist and laparoscopic surgeries like cholecystectomy by surgeons.

Aims and Objectives- To provide detailed morphological and morphometric data of the extrahepatic biliary system. Material and Method-A cadaveric study done on 50 adult human cadavers of anatomy department of Government medical college, Amritsar by dissecting extra hepatic biliary apparatus.

Results- Single extrahepatic gall bladder lodged in the fossa for the gall bladder covered with peritoneum,  rugae in interior were observed in all specimens. Extrahepatic union of Right and left hepatic duct to form common hepatic duct was noted. In 96% cystic ducts join to common hepatic duct with an acute angle. Length of cystic duct was observed to be varies from 1.5- 4cm, common hepatic duct was 1.5 to 4cm and common bile duct was 6-8cm. Cystic artery arises from hepatic artery was seen inside calot’s triangle. Both cystic and hepatic artery passing posterior to common hepatic duct to reach calot’s triangle seen in all specimens

Conclusion- Present study is having great clinical, Anatomical and surgical significance. It will further prevent the iatrogenic injuries and complications arise during, and post laparoscopic cholecystectomy.