Congenital coronary artery aneurysm

Congenital coronary artery aneurysm is relatively rare in consultation. It can occur in infants and even adults. Congenital coronary artery aneurysms account for only 15% of all coronary artery aneurysms; other causes include atherosclerosis, fungal or syphilitic infection, rheumatic disease, and mucocutaneous lymph node syndrome (Kawasaki disease). Congenital coronary artery aneurysms are more common in the right coronary artery, usually located at the bifurcation of the coronary artery, and can be single or multiple. The maximum diameter of the aneurysm can reach 15 cm. Microscopic examination reveals a lack of elastic fibers in the tunica media of the aneurysm wall, and the affected vessels continuously dilate and thin, leading to cardiac tamponade and death.