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Updated: Oct 24, 2025

Extrahepatic Bile Duct and Gall Bladder Dissection in Nine-Day-Old Mouse Neonates
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Biliary Anatomy.

Jonathan A Aguiar1, Ahsun Riaz1, Bartley Thornburg1

  • 1Section of Interventional Radiology, Department of Radiology, Northwestern Memorial Hospital, Chicago, Illinois.

Seminars in Interventional Radiology
|August 16, 2021
PubMed
Summary
This summary is machine-generated.

Biliary anatomy exhibits significant variability, with over 40% of individuals showing unique structures. Understanding these common biliary variants is crucial for safe and effective medical interventions.

Keywords:
biliary anatomybiliary variantshepatic segments

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Area of Science:

  • Hepatobiliary system anatomy
  • Medical imaging and interventional procedures

Background:

  • The hepatobiliary system demonstrates substantial anatomical variability.
  • Variant rates exceeding 40% are documented in existing literature.
  • This variability poses challenges for biliary interventions.

Purpose of the Study:

  • To review and describe standard biliary anatomy.
  • To detail the most common anatomical variants within the biliary system.
  • To emphasize the importance of recognizing variants for procedural safety.

Main Methods:

  • Literature review of anatomical studies.
  • Synthesis of data on biliary system variations.
  • Categorization of common anatomical variants.

Main Results:

  • Detailed description of typical biliary ductal anatomy.
  • Enumeration and illustration of frequent anatomical variants.
  • Highlighting key anatomical landmarks and their variations.

Conclusions:

  • Comprehensive knowledge of biliary anatomy and its variants is essential.
  • Awareness of anatomical variability improves patient safety during interventions.
  • This review serves as a critical resource for clinicians performing biliary procedures.