open access

Ahead of Print
Case report
Published online: 2021-02-23
Submitted: 2020-09-19
Accepted: 2021-01-22
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An extremely rare complete bilateral duplication of Inferior vena cava in a male cadaver: anatomy, embryology and clinical relevance

S. Shaheen, K. I. Alyahya, A. F. El Fouhil, E.E. A. Salama, M. Atteya, F. Elshaer, H. Darwish
DOI: 10.5603/FM.a2021.0016
·
Pubmed: 33634838

open access

Ahead of Print
CASE REPORTS
Published online: 2021-02-23
Submitted: 2020-09-19
Accepted: 2021-01-22

Abstract

The study presented an extremely rare case of real complete bilateral duplication of inferior vena cava (IVC) in a male cadaver which has never been reported before. Both IVC had approximately the same diameter. The right IVC drained into the right atrium; the left IVC continued as hemiazygos vein and drained into the superior vena cava. Three anastomotic venous channels, a cranial preaortic, a middle and a caudal retroaortic, joined both vessels. Multiple variations in the way of drainage of posterior intercostal veins, on both sides, were also present. The present report invalidates an old classification defining the two vessels when joined at the level of the renal veins as complete bilateral duplication of IVC. Although the presence of combination of venous variations is extremely rare, awareness of such variations is essential for clinical and surgical procedures to avoid misdiagnosis and surgical complications.

Abstract

The study presented an extremely rare case of real complete bilateral duplication of inferior vena cava (IVC) in a male cadaver which has never been reported before. Both IVC had approximately the same diameter. The right IVC drained into the right atrium; the left IVC continued as hemiazygos vein and drained into the superior vena cava. Three anastomotic venous channels, a cranial preaortic, a middle and a caudal retroaortic, joined both vessels. Multiple variations in the way of drainage of posterior intercostal veins, on both sides, were also present. The present report invalidates an old classification defining the two vessels when joined at the level of the renal veins as complete bilateral duplication of IVC. Although the presence of combination of venous variations is extremely rare, awareness of such variations is essential for clinical and surgical procedures to avoid misdiagnosis and surgical complications.

Get Citation

Keywords

double inferior vena cava, rare variant, cadaveric study, clinical relevance, embryology

About this article
Title

An extremely rare complete bilateral duplication of Inferior vena cava in a male cadaver: anatomy, embryology and clinical relevance

Journal

Folia Morphologica

Issue

Ahead of Print

Article type

Case report

Published online

2021-02-23

DOI

10.5603/FM.a2021.0016

Pubmed

33634838

Keywords

double inferior vena cava
rare variant
cadaveric study
clinical relevance
embryology

Authors

S. Shaheen
K. I. Alyahya
A. F. El Fouhil
E.E. A. Salama
M. Atteya
F. Elshaer
H. Darwish

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