Multiple variations of azygos system of veins: A case report

P. A. Maloor, S. B. Nayak, D. Reghunathan, S. D. Shetty, G. S. Prabhu

Research output: Contribution to journalArticle

Abstract

Azygos venous system drains the venous blood from thoracic wall. Knowledge of variations of its course and tributaries is important to cardiothoracic surgeons, radiologists and orthopedic surgeons. We observed the following variations in the azygos veins. Both azygos and hemiazygos veins were formed by union of lumbar azygos and subcostal veins of corresponding sides. The ascending lumbar vein did not drain into the azygos system. The hemiazygos vein had a larger diameter than the lower part of azygos vein and it joined azygos vein at the level of seventh thoracic vertebra. Accessory hemiazygos vein was totally absent. The azygos vein received 4th to 11th right posterior intercostal veins and also received 3rd to 6th left posterior intercostal veins. Hemiazygos vein received 7th to 11th left posterior intercostal veins.

Original languageEnglish
Pages (from-to)7-9
Number of pages3
JournalJournal of Morphological Sciences
Volume34
Issue number1
DOIs
Publication statusPublished - 2017

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Azygos Vein
Veins
Thoracic Vertebrae
Thoracic Wall

All Science Journal Classification (ASJC) codes

  • Anatomy
  • Histology
  • Cell Biology

Cite this

Maloor, P. A. ; Nayak, S. B. ; Reghunathan, D. ; Shetty, S. D. ; Prabhu, G. S. / Multiple variations of azygos system of veins : A case report. In: Journal of Morphological Sciences. 2017 ; Vol. 34, No. 1. pp. 7-9.
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Multiple variations of azygos system of veins : A case report. / Maloor, P. A.; Nayak, S. B.; Reghunathan, D.; Shetty, S. D.; Prabhu, G. S.

In: Journal of Morphological Sciences, Vol. 34, No. 1, 2017, p. 7-9.

Research output: Contribution to journalArticle

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