64-Year-Old Male Under Surveillance for Aortic Pathology, Anomalous Aortic Origin of the Left Coronary Artery with an Interarterial Course
AAOLCA : Anomalous aortic origin of the left coronary artery with an interarterial course Anomalous aortic origin of the left coronary artery with an interarterial course (AAOLCA) is a rare congenital coronary artery anomaly that carries potential clinical significance due to its association with sudden cardiac death, particularly in young individuals. 1. Cause and Etiology AAOLCA is a congenital anomaly , meaning it is present at birth and results from abnormal embryological development of the coronary arteries. During normal development, the coronary arteries form from vascular endothelial buds that penetrate the aortic sinuses. Malrotation, displacement, or misconnection during this process can lead to an anomalous origin. In AAOLCA, the left coronary artery (LCA) arises abnormally from the right coronary sinus (RCS) or adjacent aortic wall instead of the left coronary sinus (LCS), and takes an interarterial course between the aorta and the pulmonary artery , w...