Table of Contents
ISRN Anatomy
Volume 2013 (2013), Article ID 250950, 6 pages
http://dx.doi.org/10.5402/2013/250950
Clinical Study

Clinical Insight into the Precaval Right Renal Artery: A Multidetector Row Computed Tomography Angiographic Study

1Department of Anatomy, Muzaffarnagar Medical College, Muzaffarnagar 251203, India
2Department of Anatomy, Hind Institute of Medical Sciences, Safedabad, Barabanki 225003, India
3OP Gupta Imaging Center, Bachcha Park, Meerut 250002, India

Received 30 January 2013; Accepted 28 February 2013

Academic Editors: A. Al-Hayani, A. Capehart, M. Guvencer, and B. Mitchell

Copyright © 2013 Shubha Srivastava et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Variations of course and number of renal vessels are not so uncommon and their knowledge is important for planning of minimally invasive renal surgeries. The earlier literature reports a prevalence of precaval right renal artery between 0.8% and 5%. Normally, the right renal artery passes posterior to the inferior vena cava, but it can also be precaval where it passes anterior to inferior vena cava. The multidetector row contrast enhanced computed tomography angiography allows precise evaluation of renal vasculature. The aim of this retrospective study is to determine the prevalence of precaval right renal artery. Amongst 73 MDCT scans studied, we identified 4 cases of precaval right renal artery with the prevalence being 5.48%, more than what is reported in the earlier literature. We also report a single and dominant precaval right renal artery in one of the cases, which is a rare finding. On the basis of these results, we conclude that precaval right renal artery appears to be more common and so the knowledge of this variant holds a major clinical implication in preventing misinterpretation of radiological images and proper planning of interventional procedures and minimally invasive surgeries.