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Updated: May 11, 2026

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A Jugulo-Cephalico-Subclavian Venous Complex Associated With a Double Fenestration of the External Jugular Vein: A

Maria Piagkou1,2, Vasileios Kachtsidis3, George Triantafyllou1,2

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

The Journal of Craniofacial Surgery
|March 17, 2026
PubMed

Insights

This cadaveric report details a rare venous system variation. It found an unusual cephalic vein path and double-fenestrated external jugular vein, forming a unique jugulo-cephalico-subclavian venous complex.

Area of Science:

  • Anatomy
  • Vascular Anatomy
  • Human Anatomy

Background:

  • Anatomical variations in the venous system are common but can present unique challenges.
  • Understanding these variations is crucial for accurate diagnosis and surgical planning.

Purpose of the Study:

  • To document and describe a rare coexisting combination of two distinct venous system anomalies.
  • To highlight the clinical significance of this unique anatomical finding.

Main Methods:

  • Cadaveric dissection of a 70-year-old male donor.
  • Detailed examination and documentation of the venous system, focusing on the cephalic and external jugular veins.

Main Results:

  • Identification of an atypical supraclavicular course and termination of the cephalic vein.
  • Observed double fenestration of the external jugular vein prior to its confluence.
  • Described the co-occurrence of these two rare variations, termed the jugulo-cephalico-subclavian venous complex.

Conclusions:

  • This report presents a unique anatomical variant of the venous system.
  • The jugulo-cephalico-subclavian venous complex has potential clinical implications for vascular procedures and interpretation of imaging studies.

Keywords:
Cephalic veinexternal jugular veinjugulocephalic veinterminationvariation

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