Case Study A02-5: LCA from RC Sinus - Course Low between PA and Ao and dLAD separately supplied from RCA coursing anterior to PA
Anatomy – Anomalous vessels that course anterior to the PA include RCA from mid LAD, a distal LAD from the RCA and rarely a LCA from the RC Cusp. This example is essentially a LCA from the RC cusp coursing low in front of the aortic sinus with the more distal LAD and its branches supplied by a second anomalous vessel originating from the RC Cusp and travelling anterior to the aorta.
Construction – (Select Settings > Choose Button Q Nums.) Template button Q1.4.2 sets the stage for is anomaly; Q3.1.A.9 presents the anomalous distal LAD variation.