title: Left ventricular outflow obstruction produced by a pedunculated fibroma in a newborn: clinical, angiographic, echocardiographic and surgical observations.
abstract: An unusual case of a one-day-old infant with significant left ventricular outflow obstruction produced by a pedunculated fibroma is described. The clinical findings were indistinguishable from severe valvular or subvalvular aortic stenosis. The tumor was difficult to detect by echocardiography. It produced an echo-free widening of the left ventricular outflow tract. Left ventricular cineangiography clearly demonstrated a mobile mass beneath the aortic valve.
mesh_terms: D001024:Aortic Valve Stenosis / Q000175:diagnosis* / Q000209:etiology; D002932:Cineangiography; D004452:Echocardiography; D005260:Female; D005350:Fibroma / Q000151:congenital* / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000601:surgery; D006338:Heart Neoplasms / Q000151:congenital* / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000601:surgery; D006352:Heart Ventricles / Q000601:surgery; D006801:Humans; D007231:Infant, Newborn