Anomalous origins of the left coronary arteries from the right sinus of valsalva with an unusual course.

We report and attempt to classify a previously undescribed coronary artery anomaly. Our patient had all three coronary arteries arising from a common ostium in the right sinus of Valsalva, with an unusual distribution to the left coronary artery system: the anomalous left circumflex system taking an intraseptal (intramyocardial) course and the anomalous left anterior descending system taking an interarterial (between the great vessels) course.