Supravalvular pulmonary stenosis caused by a membrane in the main pulmonary artery

A hitherto unreported combination of pulmonary stenosis, single coronary artery anomaly, and coronary sinus to left atrial communication

“…Pulmonary stenosis can occur as part of more congenital cardiac malformations or as rare primary isolated pulmonary stenosis, 1 which includes the valvular, sub‐valvular, or supra‐valvular pulmonary stenosis. Valvular stenosis is by far the most common type 2 . Single coronary artery anomalies are very rare, anomalous right coronary artery originating from proximal to mid‐left anterior descending coronary artery is one such single coronary artery anomaly, 3 in most cases, anomalous right coronary artery originates from proximal to mid‐left anterior descending coronary artery is asymptomatic, diagnosed incidentally, and a benign entity has a better prognosis except if the right coronary artery is passing between the aorta and pulmonary artery.…”

“…Valvular stenosis is by far the most common type. 2 Single coronary artery anomalies are very rare, anomalous right coronary artery originating from proximal to mid-left anterior descending coronary artery is one such single coronary artery anomaly, 3 in most cases, anomalous right coronary artery originates from proximal to mid-left anterior descending coronary artery is asymptomatic, diagnosed incidentally, and a benign entity has a better prognosis except if the right coronary artery is passing between the aorta and pulmonary artery. This course of the right coronary artery anomaly is malignant and prone to compression and at higher risk to develop atherosclerosis, myocardial ischemia, and sudden cardiac death even without underlying atherosclerosis.…”