Rare cause of central cyanosis: right pulmonary artery to left atrial fistula

Abstract

A fistula between the right pulmonary artery and the left atrium is a very rare cause of central cyanosis. A clinical diagnosis is often made by first excluding other common causes and then performing diagnostic catheterization. Surgical closure offers a definitive cure for this rare congenital anomaly.

Keywords: Cyanosis; Left atrium; Right pulmonary artery.