Aneurysm of the membranous ventricular septum.
D000293:Adolescent; D000328:Adult; D000790:Angiocardiography; D006328:Cardiac Catheterization; D002648:Child; D002932:Cineangiography; D005260:Female; D006322:Heart Aneurysm / Q000151:congenital / Q000175:diagnosis*; D006346:Heart Septum; D006801:Humans; D008297:Male