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Related Experiment Videos

Large inferior right hepatic vein. Clinical implications

J Champetier1, H Haouari, J F Le Bas

  • 1Department of Anatomy, Faculty of Medicine of Grenoble, La Tronche, France.

Surgical and Radiologic Anatomy : SRA
|January 1, 1993
PubMed
Summary

An extra-wide right inferior hepatic vein, a common variation in liver anatomy, significantly impacts venous drainage. This finding is crucial for surgical planning and understanding liver circulation.

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Area of Science:

  • Anatomy
  • Vascular Surgery
  • Medical Imaging

Background:

  • The right middle and inferior hepatic veins are typically small, but variations exist.
  • An extra-wide right inferior hepatic vein alters normal venous drainage of the liver's right lobe.

Purpose of the Study:

  • To investigate the incidence and characteristics of extra-wide right inferior hepatic veins (RIHV).
  • To determine the clinical significance of RIHV in liver surgery and pathology.

Main Methods:

  • Analysis of 125 anatomical liver specimens, including injection-corrosion, formolised livers, and cadaveric sections.
  • Review of existing literature on hepatic vein variations.

Main Results:

  • Extra-wide RIHV (≥0.5 cm caliber) found in 9-16% of specimens, depending on the method.

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  • RIHV is consistently located near the liver's visceral surface, primarily draining segment VI.
  • Rarely, RIHV may predominate over the right superior hepatic vein.

    • Conclusions:

    • The presence of an extra-wide RIHV is a significant anatomical variation impacting liver lobe venous drainage.
    • Detection via MRI and intraoperative ultrasonography is vital for surgical procedures like subtotal hepatectomy.
    • RIHV can play a role in compensatory circulation in certain pathological conditions.