Aortic stenosis with marked right ventricular hypertrophy.
D001024:Aortic Valve Stenosis / Q000151:congenital*; D002312:Cardiomyopathy, Hypertrophic / Q000150:complications / Q000175:diagnosis*; D002648:Child; D002675:Child, Preschool; D004562:Electrocardiography; D006801:Humans; D007223:Infant; D008297:Male; D014672:Vectorcardiography