Abstract
A 1-year-old girl had cyanosis and sings of a “normal heart”. Peripheral contrast echocardiography (M-mode and real time, two-dimensional) was performed with injection of saline into a superficial vein of the right hand. Contrast echoes did appear in the left atrium and ventricle, but did not in the right atrium or ventricle. From these findings anomalous drainage of the right superior vena cava into the left atrium was suspected and was confirmed by cineangiocardiography.