AORTIC SINUS ANEURYSMS

Abstract
Two further cases of aneurysms of the aortic sinuses are described. In case 1, the aneurysm arose from the right (coronary) sinus and ruptured into the right ventricle. There were 2 aneurysms in case 2, arising from the left and right (coronary) sinuses, and the latter aneurysm ruptured into the interventricular septum compressing the left branch of the bundle of His. In addition, there was a congenital absence of the right anterior aortic valve cusp. The embryological development in this form of congenital heart disease is discussed.