Congenital aneurysm of the membranous ventricular septum.
D000293:Adolescent; D000790:Angiocardiography; D001024:Aortic Valve Stenosis; D006328:Cardiac Catheterization; D004562:Electrocardiography; D006322:Heart Aneurysm / Q000151:congenital*; D006345:Heart Septal Defects, Ventricular; D006801:Humans; D008297:Male; D010701:Phonocardiography