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Internal Jugular Vein Fenestration and Duplication.

George Triantafyllou1, Katerina Vassiou2, Łukasz Olewnik3

  • 1Department of Anatomy, School of Medicine, Faculty of Health Sciences, National and Kapodistrian University of Athens, Athens.

The Journal of Craniofacial Surgery
|December 4, 2024
PubMed
Summary

This study investigated rare anatomical variations of the internal jugular vein (IJV). It found a low incidence of IJV duplication and fenestration, highlighting the importance of knowing these variants for surgical safety.

Keywords:
Computed tomography angiographyduplicationfenestrationinternal jugular veinvariation

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Area of Science:

  • Anatomy
  • Radiology
  • Vascular Surgery

Background:

  • The internal jugular vein (IJV) is a major neck vein, crucial for venous drainage from the head and neck.
  • Understanding its normal and variant anatomy is vital for preventing surgical complications.

Purpose of the Study:

  • To investigate the incidence of morphological variants of the internal jugular vein (IJV).
  • To document rare aberrations such as IJV duplication and fenestration.

Main Methods:

  • Retrospective analysis of 200 computed tomography angiographies.
  • Evaluation of IJV morphology and identification of any variant anatomy.

Main Results:

  • Three cases of unilateral IJV duplication were observed (0.75%).
  • One case of IJV fenestration was identified (0.25%).
  • These rare variants were found in a small percentage of the study population.

Conclusions:

  • Internal jugular vein duplication and fenestration are rare anatomical variations.
  • Awareness of these uncommon IJV variants is essential for head and neck surgeons and anesthesiologists to minimize iatrogenic injury.