Anomalous drainage of the right superior vena cava into the left atrium as an isolated anomaly. Rare case report.

A case of cyanotic congenital heart disease with left ventricular hypertrophy is described. Cardiac catheterization showed a right superior vena cava draining into the left atrium without other cardiovascular abnormality. This is the fifth case of this rare congenital anomaly described in the literature and the first one reported in a male. The patient was 7-months-old when diagnosed. Despite the important right-to-left shunt, after a follow-up of 2 years, growth and development are normal.