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TheScientificWorldJOURNAL
Volume 10, Pages 1999-2002
http://dx.doi.org/10.1100/tsw.2010.187
Case Study

High Origin of Radial Arteries: A Report of Two Rare Cases

1Department of Anatomy, Faculty of Basic Medical Sciences, Kunming Medical College, China
2Department of Anatomy, Yong Loo Lin School of Medicine, National University of Singapore, Singapore

Received 23 July 2010; Revised 12 September 2010; Accepted 14 September 2010

Academic Editor: George Siegel

Copyright © 2010 Dong Zhan et al.

Abstract

Variations in the arterial supply of the upper limb are relatively common, with reported prevalence rates ranging from 11 to 24.4%. Of these, the most commonly encountered variation in the arm is a high origin of the radial artery. However, after consecutively dissecting and examining 600 Singaporean Chinese cadavers (1,200 upper limbs), we found only two cases of this. In both cases, the brachioradial artery originated from the upper one-third of the brachial artery and continued distally as the radial artery in the forearm. The local prevalence of 0.33% of this variation is significantly lower compared against populations from other geographical regions. Although rare, recognition of the variation is of fundamental importance to clinical practice.