Clues on the Three-Vessel View for Fetal Diagnosis of Supracardiac Total Anomalous Pulmonary Venous Connection.

• TAPVC is a very rare diagnosis in the settings of situs solitus and AVSD. • The 3VV with color flow Doppler is helpful in making the diagnosis prenatally. • Vena cava size discrepancy and large brachiocephalic vein suggest supracardiac TAPVC.