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Related Experiment Videos

Are left-sided gallbladders really located on the left side?

M Nagai1, K Kubota, S Kawasaki

  • 1The Second Department of Surgery, Faculty of Medicine, University of Tokyo, Japan.

Annals of Surgery
|March 1, 1997
PubMed
Summary
This summary is machine-generated.

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A right-sided round ligament can make a gallbladder appear left-sided, despite being in the normal anatomical position. This condition is linked to abnormal intrahepatic portal venous branching, crucial for hepatectomy planning.

Area of Science:

  • Anatomy and Embryology
  • Surgical Anatomy
  • Gastrointestinal Radiology

Background:

  • Left-sided gallbladder is a rare anomaly with two classifications: gallbladder migration or a second gallbladder with atrophy.
  • Recent findings suggest an association between left-sided gallbladders and right-sided round ligaments.

Purpose of the Study:

  • To investigate the association between left-sided gallbladders and right-sided round ligaments.
  • To clarify the anatomical implications and diagnostic considerations of this association.

Main Methods:

  • Retrospective review of 3 patients treated in-house.
  • Literature search and review of 15 reported cases with left-sided gallbladders and right-sided round ligaments.
  • Analysis of intrahepatic portal venous branching patterns in all 18 cases.

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Main Results:

  • In all 18 patients, the gallbladder was anatomically in the normal position but appeared left-sided due to the right-sided round ligament.
  • Abnormal intrahepatic portal venous branching was consistently observed, classified into trifurcation (8 patients) and bifurcation (5 patients) types, with 5 undetermined.
  • Trifurcation type: Portal vein first branches to the posterior segment, then forms a trunk for left and right anterior portal veins, with the latter joining the right-sided round ligament.

Conclusions:

  • A right-sided round ligament can reposition a normally located gallbladder to appear on the left side.
  • This anomaly should be identified as a right-sided round ligament, not a left-sided gallbladder.
  • Clinical recognition is vital for hepatectomy due to consistent association with abnormal intrahepatic portal venous branching.