Abstract
Coronary artery aneurysm is an abnormal dilatation of part of the coronary artery.
Causes
Acquired causes include atherosclerosis, Kawasaki disease and coronary catheterization.
It can also be congenital.
Prognosis
Generally, it has a good prognosis. In Kawasaki's disease, untreated, there is a 1–2% death rate, from cardiac causes.