Extrinsic Circumflex Coronary Artery Compression and Occlusion by Mycotic Aneurysm of Left Aortic Sinus
The majority of myocardial ischemia and infarction occurs due to coronary atherothrombosis or myocardial oxygen supply and demand imbalance.1 Myocardial ischemia and infarction due to extrinsic compression of a left coronary artery are unusual and have been the subject of rare case reports. They have been described as being due to severe pulmonary artery dilation in patients with pulmonary hypertension,2 anomalous origin of left coronary artery from right aortic sinus with interarterial course,3 congenital aortic sinus of Valsalva aneurysms (SVAs),4 pseudoaneurysm following ascending aortic replacement surgery,5 and submitral left ventricular aneurysms.