Research Article
Volume 3 Issue 6 - 2020
Anatomical Variations of the Gonadal Veins
Imeshi Indigahawela*, Asiri Arachchi, Chris Briggs, Amos Nepacina Liew, Thomas Suhardja and Agron Mataj
Department of Anatomy and Cell Biology, Melbourne University, Melbourne, Victoria, Australia
*Corresponding Author: Imeshi Indigahawela, Department of Anatomy and Cell Biology, Melbourne University, Melbourne, Victoria, Australia.
Received: December 09, 2019; Published: May 29, 2020




Abstract

Introduction: Anatomical variations of the gonadal veins have been historically described but only a few studies have been conducted in Australia on the anatomical variations of the gonadal vessels. Anatomically, the gonadal veins are asymmetric and have different drainage pathways between the right and left sides.).

Knowledge on the anatomical variations of the gonadal veins is important as unfamiliarity of the anatomy in the abdomen and pelvis may result in complications during and after surgery. Precise detailed information on the variations of gonadal vessels may further aid in safety guidelines for surgical techniques.

Objectives: This study aims to present an analysis of variations on the type of structure, number and locale of drainage. 

Methods: Study samples were accessed from the Anatomy Department, The University of Melbourne, Melbourne, Australia. The human cadavers were routinely dissected for exposure of peritoneal and retroperitoneal structures. Adjacent connective tissues were separated from the vessels for proper exposure. Three anatomical aspects of gonadal vessels were considered:

Type of structure 

Number 

Locale of drainage

Results: Out of 17 cases with anatomical variations, 12 were females and remaining were males. According to the vessel structures, majority were veins (13) and only four (4) were arteries. For the gonadal veins, accessory/duplication structures were seen in eight (8) occasions and remaining five (5) veins were single. No variations were noted bilaterally. Less commonly the right gonadal vein enters the right renal vein instead of draining into the IVC. This type of variation was most commonly observed for the drainage of the sampled gonadal veins. Other variations observed were gonadal vein entering the left side of the IVC (instead of the right side of the IVC) and drainage into the external iliac vein. 

Conclusion: Anatomical variations of the gonadal blood vessels were observed in this study. Findings from this study may aid in developing relevant surgical safety guidelines and imaging guidelines. 

Keywords: Anatomical Variations; Gonadal Veins; Inferior Vena Cava (IVC)

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Citation: Imeshi Indigahawela., et al. “Anatomical Variations of the Gonadal Veins”. EC Clinical & Experimental Anatomy 3.6 (2020): 09-12.

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