Coronary artery aneurysms are a rare but important finding to identify in patients having cardiac imaging. Coronary artery aneurysms result from the localized dilation or bulging of the artery walls and can be caused by various factors, including atherosclerosis, connective tissue disorders, infections, or congenital abnormalities. Kawasaki syndrome is an important cause in the pediatric population.

Complications of coronary artery aneurysms include thrombosis formation, embolism, or rupture, which can lead to myocardial infarction or other life-threatening complications.