<prompt> A new born presents with deepening cyanosis at birth, with congestive heart failure and normal first heart sound. Xray reveals cardiomegaly diagnosis isTetralogy of fallotsEbstein anomallyTransposition of great vesselsTricuspid atresia  <response>: Ebstein anomaly is a congenital malformation of the heart that is characterized by apical displacement of the septal and posterior tricuspid valve leaflets, leading to atrialization of the right ventricle with a variable degree of malformation and displacement of the anterior leaflet. 