Congenital Aortocaval Fistula from Right Subclavian Artery to Superior Vena Cava in an Adult with Tetralogy of Fallot

Congenital   aortocaval   fistula in association with complex congenital heart disease has never been described before. We represent an adult with tetralogy of fallot and an undiagnosed subclavian artery to superior vena cava fistula in previous catheterisms. He underwent surgical correction, successfully. After 8 months post operation he was doing well with improved functional capacity and no cyanosis.