Krishnakumar, NairKrishna, Manohar RTharakan, J A2012-12-042012-12-042007The Journal of invasive cardiology. 19; 9; 401-2https://dspace.sctimst.ac.in/handle/123456789/1000We present the case of a 19-year-old male who presented with late-onset cyanosis and a normal cardiovascular system examination. Contrast echocardiography revealed a right-to-left shunt. A right pulmonary artery-to-left atrial fistula was seen on the angiogram, which was surgically corrected. Early intervention is indicated to prevent complications in patients with this condition.CardiologyRight pulmonary artery-to-left atrial fistula: a differential diagnosis of cyanosis without structural heart disease.