Author + information
- Received December 12, 2008
- Accepted February 13, 2009
- Published online September 8, 2009.
Congenital coronary anomalies affect ≈1% of the population. The single coronary artery variant has been well described (1). We describe a new anomalous coronary artery variant in which a single coronary artery originating from the right coronary cusp courses the entire atrioventricular groove, encircling the heart like a necklace, or collier[French]. Computed tomographic coronary angiography was performed in a 59-year-old woman with atypical chest pain. Three-dimensional volume-rendered images show that a single right coronary artery, after giving rise to the posterior descending artery (yellow arrows), continues to course in the left atrioventricular groove, giving rise to obtuse marginal branches (black arrows)and to the left anterior descending artery (white arrows)(A and B, Online Video 1).
Dr. Chow has received research support from GE Healthcare and Pfizer, fellowship support from GE Healthcare, and educational support from TeraRecon.
- Received December 12, 2008.
- Accepted February 13, 2009.
- American College of Cardiology Foundation