Fig. 2From: Perinatal/Neonatal case presentation: pulmonary artery sling associated with respiratory distressTransthoracic echocardiogram with Doppler showing main pulmonary artery (MPA), right pulmonary artery (RPA) and left pulmonary artery (LPA) flow. Note turbulence within the LPA segment as it courses between the trachea and esophagusBack to article page