Fig. 3
From: Perinatal/Neonatal case presentation: pulmonary artery sling associated with respiratory distress
Posterior view of 3D computed tomography angiogram reconstruction showing the main pulmonary artery (MPA) giving rise to the left (LPA) and right (RPA) pulmonary arteries. A pulmonary artery sling is formed as the LPA makes an acute angle encircling the trachea (Tr), runs up against the esophagus (Eso), and finally passes anterior to the aorta (Ao)