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Anat Cell Biol

Published online January 11, 2021


Copyright © Korean Association of ANATOMISTS.

Novel bilateral bifurcation of the coronary vasculature

Adam Michael Taylor1 , Joe McAleer2 , Quenton Wessels3

1Clinical Anatomy Learning Centre, Lancaster Medical School, Faculty of Health and Medicine, Lancaster University, Lancaster, 2Royal Preston Hospital, Fulwood, United Kingdom, 3Department of Anatomy, School of Medicine, University of Namibia, Windhoek, Namibia

Correspondence to:Quenton Wessels
Department of Anatomy, School of Medicine, University of Namibia, Private Bag 13301, Windhoek, Namibia
E-mail: qwessels@unam.na

Received: September 12, 2020; Revised: October 28, 2020; Accepted: December 14, 2020

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.


Multiple variants and anomalies in the coronary vasculature have been reported. Some variants, particularly those with duplication, can be advantageous, many are insignificant and some are ultimately lethal. Many of these variants and anomalies are not identified until imaged or post-mortem. A novel bilateral bifid variation of the coronary arteries was observed in 49-year-old male cadaver. The respective origins were associated with the left and right aortic cusps from single ostia. Immediate bifurcation followed on either side. A right sided accessory branch supplied the pulmonary trunk and right ventricle. A more standard branch continued to form the posterior interventricular artery. The left sided variation demonstrated a solitary circumflex artery (towards the posterior interventricular septum) and, left marginal and anterior interventricular branches shortly after bifurcation. This case may be beneficial in surviving adverse cardiac events, particularly those associated with lifestyle. They also present a ‘double’ challenge for clinicians.

Keywords: Anatomy, Coronary vessels, Variation, Embryology

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