PMC6230987_01
Echocardiography showing the retro-aortic position of the innominate vein (IV), positioned between the right aortic arch (RAA) and the right pulmonary artery (RPA).
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F1
Echocardiography confirmed the pre-natal diagnosis showing the morphology of tetralogy of Fallot with hypoplastic main pulmonary artery, right aortic arch, retro-aortic innominate vein, single right superior vena cava, and a normal coronary arteries pattern (Figure 1).