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Case Reports
. 2011 Jan-Mar;7(1):e2.
doi: 10.2349/biij.7.1.e2. Epub 2011 Jan 1.

Superdominant right coronary artery with absent left circumflex artery

Y Majid  1 , M Warade, J Sinha, A Kalyanpur, T Gupta
Affiliations
Case Reports

Superdominant right coronary artery with absent left circumflex artery

Y Majid et al. Biomed Imaging Interv J. 2011 Jan-Mar.

Abstract

Noninvasive imaging of coronary artery disease is rapidly replacing angiography as the first line of investigation. Multislice CT is the non-invasive modality of choice for imaging coronary artery disease and provides high speed with good spatial resolution. CT coronary angiography in addition to detecting and characterising atherosclerotic coronary artery disease is also a good imaging tool for evaluating anomalies of coronary arteries. Superdominant right coronary artery with absent left circumflex artery is one such rare coronary artery anomaly which is well evaluated with multislice CT angiography. The authors report one such case of superdominant right coronary artery with absent left circumflex artery imaged with 64-slice MDCT.

Keywords: Absent left main coronary artery; atrioventricular groove; congenital defect; right posterolateral ventricular branch (RPDA); single coronary artery; superdominant right coronary artery.

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Figures

Figure 1
Figure 1
Serial axial sections of heart demonstrating absent left circumflex artery (open arrow) in the upper part of left atrioventricular groove (arrow) with left main coronary artery (LM) continuing as left anterior descending artery (LAD). Good-sized right posterolateral ventricular branch (RPLV), crossing the crux of the heart and then ascending into the inferior part of atrioventricular groove (double arrows). Several tortuous branches arising from RPLV (curved arrow) perfusing postero-lateral and lateral walls of the heart (in the usual vascular territory of LCX artery)
Figure 2
Figure 2
Volume rendered images of heart demonstrating absent left circumflex artery (open arrow) in the upper part of left atrioventricular groove (arrow) with left main coronary artery (LM) continuing as left anterior descending artery (LAD). Good-sized and tortuous right coronary artery (RCA). Good-sized right posterolateral ventricular branch (RPLV) arising from the right coronary artery and extended leftwards, crossing the crux of the heart and then ascending into the inferior part of atrioventricular groove (double arrows). Several tortuous branches arising from RPLV (curved arrow) perfusing postero-lateral and lateral walls of the heart (in the usual vascular territory of LCX artery).
See this image and copyright information in PMC

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