ANATOMIC VARIANTS OF INTRAHEPATIC BILE DUCTS AND CYSTIC DUCTS IN SAUDI ARABIA: MAGNETIC RESONANCE CHOLANGIOPANCREATOGRAPHY ANALYSIS IN LIVER DONORS

Abstract

Background: Data regarding the pattern of the anatomical variations of biliary tree from the Middle East is considerably decient when compared with the literature available elsewhere. To dete Objective: rmine anatomic variation in branching pattern of intra hepatic bile duct and cystic duct on Magnetic resonance Cholangiopancreatography in liver donors from Saudi Arabia. Methods: This descriptive study was done at Radiology Department Prince Sultan Military Medical City Riyadh, KSA between 2019-2020 after taking IRB approval (IRB No:1404) and collecting data of liver donors (n=92) using Magnetic resonance cholangiopancreatography. Result: Regarding the right hepatic duct, in our study Type A1(69.6%) was predominant followed by Type A2(16.3%). As for the left hepatic duct, typical pattern Type A was observed in 94.6% cases. Drainage of right posterior hepatic duct into left hepatic duct, A3(7.6%) and A4(5.4%) drainage of right posterior hepatic duct into the common hepatic duct were the most common variants in our study. Accessory bile duct with segment 5 draining into CHD with segment 5and 8 draining into CHD was found in 2.2% of cases, and an aberrant bile duct in 1.1% In our study, majority (97.8% )had lateral insertion of cystic duct and in 1.4% accessory cystic duct was noted. Because of growing trend found in Conclusion: number of liver transplant surgeries being performed, magnetic resonance cholangiopancreatography (MRCP) has become optimal for noninvasive evaluation of abnormalities of the biliary tract.