Aortico-left ventricular tunnel is a rare congenital cardiac lesion that often results in severe aortic insufficiency in infancy. In previously reported cases, the diagnosis has often been missed initially despite use of cardiac catheterization and angiography. We describe a patient who underwent successful surgical correction of this malformation at 10 months of age after the diagnosis had been established by use of two-dimensional echocardiography, color flow Doppler imaging, and magnetic resonance imaging. Aortico-left ventricular tunnel can be diagnosed by use of these noninvasive means without cardiac catheterization.
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