“…1,2 The bifurcation of the vessel into two arteries signifies that these are the branch pulmonary arteries, yet they arise from the left ventricle, making the diagnosis of TGA (a complete echocardiogram should always be done to confirm the diagnosis). 3,4 There is an intact ventricular septum in this view, and the lack of colour Doppler turbulence in the main pulmonary arterybeing a uniform deep blueconfirms lack of PS.Answer 2The answer is 3: Atrioventricular valve (AV) canal defect.The red blood flow jet on Doppler shows a wide AV canal area with blood from the left atrium into both ventricles. 5,6 The infant had Trisomy 21.…”