Fig. 9

Anomalous origin of the circumflex artery from the right coronary artery with a “benign” course posterior to the aorta. a Volumetric-rendering demonstrates the right coronary artery (white arrowhead) as it courses in the right atrioventricular groove. The circumflex artery (black arrowhead) branches off the right coronary artery and courses posterior to the aorta. b Volumetric rendering from a more superior projection again demonstrates the right coronary artery (white arrowhead) as it courses in the right atrioventricular groove. The circumflex artery (black arrowhead) courses between the aorta (Ao) and left atrium (LA). c Globe MIP again demonstrates the circumflex artery (black arrowhead), which courses between the aorta (Ao) and left atrium (LA)