Anomalous Origin of the Left Coronary Artery From the Noncoronary Cusp: Not a Benign Lesion

Rare origin of left main coronary artery from non-coronary sinus with aortic coarctation

“…Though originally thought to be a benign condition, LCANCS has been associated with sudden cardiac death (SCD) or fatal arrhythmia. Anwar et al 3 first described the coronary intramural course in LCANCS, as suspected by CTCA which was further confirmed during surgical exposure. This intramural course has been hypothesised to increase the chances of fatal arrhythmias and SCD because of which aggressive management by a surgical unroofing procedure is advocated 3.…”

“…Anwar et al 3 first described the coronary intramural course in LCANCS, as suspected by CTCA which was further confirmed during surgical exposure. This intramural course has been hypothesised to increase the chances of fatal arrhythmias and SCD because of which aggressive management by a surgical unroofing procedure is advocated 3. After the advent of multidetector CTCA, there has been increase in the detection rate of anomalous coronary arteries 4.…”

Left main coronary artery originating from the non-coronary sinus: A rare low-risk coronary anomaly

“…The anomalous origin of left main coronary artery from non-coronary sinus is an extremely rare anomaly with variable incidence estimated at 0.0008% [1]. To the best of our knowledge, there are only three cases of LCANCS described by CT scan [3][4][5]. Anomalous origin of the left main coronary artery from the non-coronary sinus (LCANCS) is extremely rare with few reported cases in English literature [3].…”

Association between Anomalous Origin of the Left Main and Accessory Mitral Valve Tissue

“…The incidence was the highest for the separate origin of the left anterior Ectopic coronary origin from the opposite aortic sinus (1.9%) and single coronary artery (3.88%) were described but they are rare [2]. The literature is poor of cases describing an anomalous origin of the LCA from the non-coronary sinus of Valsalva [3][4][5][6]. Two-dimensional echocardiography, computed tomography angiography and magnetic resonance are the most important diagnostic instruments for the evaluation of the coronary anomalies [7].…”