Type 4 Dual Left Anterior Descending Artery: A Very Rare Coronary Anomaly Circulation

Figure 4

CT angiography confirming the anomalous (interarterial) course of the long LAD artery (white arrow) from the right sinus of Valsalva (close to the RCA ostium), coursing along the distal part of the AIVS (the pulmonary trunk was removed). CT, computed tomography; LAD, left anterior descending artery; RCA, right coronary artery; AIVS, anterior interventricular sulcus.