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Updated: Dec 20, 2025
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Laparoscopic Common Bile Duct Exploration Followed by Primary Suture Using a Modified Bile Duct Incision
Published on: May 2, 2025
524
Biliary anatomy and pancreatic duct variations: A cross-sectional study
Murad Aljiffry1, Mohammad Abbas1, Mohammad A M Wazzan2
1Department of Surgery, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia.
Summary
Surgical understanding of biliary and pancreatic duct variations is crucial. Magnetic resonance cholangiopancreatography (MRCP) identified common variations in hepatic ducts and rare pancreatic divisum, highlighting anatomical diversity.
Area of Science:
- Radiology
- Anatomy
- Gastroenterology
Background:
- Surgical outcomes depend on understanding biliary and pancreatic duct variations.
- Magnetic resonance cholangiopancreatography (MRCP) is a safe and accurate imaging tool.
- Prevalence of typical right hepatic duct (RHD) and left hepatic duct (LHD) anatomy is reported, with pancreatic divisum being the most common anomaly (4-10%).
Purpose of the Study:
- To evaluate and determine the prevalence of biliary tree and pancreatic duct variations.
- To assess anatomical diversity in a university hospital patient cohort.
Main Methods:
- Retrospective cross-sectional study of 325 patients' MRCP records (2015-2017).
- Independent review of images by two senior radiologists for variations.
- Classification of RHD/LHD variations using Huang et al. criteria; analysis of cystic duct and pancreatic duct anatomy.
Main Results:
- Common RHD variants: A1 (34.2%) and A2 (32.2%).
- Most frequent LHD variant: B1 (71.4%).
- Right lateral insertion was the most common cystic duct variant (27.7%); pancreatic divisum observed in 0.6% of cases.
Conclusions:
- Biliary and pancreatic duct variations are diverse, extending from intrahepatic structures to the pancreas.
- Further studies on larger populations are needed to fully illustrate community-specific variations.
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