Split Azygos Vein: A Case Report.
anatomy
azygos vein
cadaver
embryology
inferior vena cava
variation
Journal
Cureus
ISSN: 2168-8184
Titre abrégé: Cureus
Pays: United States
ID NLM: 101596737
Informations de publication
Date de publication:
15 Feb 2021
15 Feb 2021
Historique:
entrez:
22
3
2021
pubmed:
23
3
2021
medline:
23
3
2021
Statut:
epublish
Résumé
The azygos venous system, which comprises the azygos, hemiazygos, and accessory hemiazygos veins, assists in blood drainage into the superior vena cava (SVC) from the thoracic cage and portions of the posterior mediastinum. Routine dissection of a fresh-frozen cadaveric specimen revealed a split azygos vein. The azygos vein branched off the inferior vena cava (IVC) at the level of the second lumbar vertebra as a single trunk and then split into two tributaries after forming a venous plexus. The right side of this system drained into the SVC and, inferiorly, the collective system drained into the IVC. Variant forms in the venous system, especially the vena cavae, are prone to dilation and tortuosity, leading to an increased likelihood of injury. Knowledge of the anatomical variations of the azygos vein is important for surgeons who use an anterior approach to the spine for diverse procedures.
Identifiants
pubmed: 33747658
doi: 10.7759/cureus.13362
pmc: PMC7970156
doi:
Types de publication
Case Reports
Langues
eng
Pagination
e13362Informations de copyright
Copyright © 2021, Lachkar et al.
Déclaration de conflit d'intérêts
The authors have declared that no competing interests exist.
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