PMC4710629_01
Transthoracic echocardiogram showing main pulmonary artery (MPA) giving rise to right pulmonary artery (RPA) with arrow depicting left pulmonary artery (LPA) arising from its distal segment
40064_2015_1656_Fig1_HTML.jpg
PMC4710629_01_40064_2015_1656_Fig1_HTML.jpg
Fig1
Cardiac echo revealed a PAS with the LPA arising from the RPA (Figs. 1, 2).
Transthoracic 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 esophagus
40064_2015_1656_Fig2_HTML.jpg
PMC4710629_01_40064_2015_1656_Fig2_HTML.jpg
Fig2
Cardiac echo revealed a PAS with the LPA arising from the RPA (Figs. 1, 2).
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)
40064_2015_1656_Fig3_HTML.jpg
PMC4710629_01_40064_2015_1656_Fig3_HTML.jpg
Fig3
A bronchoscopy was performed and a 3D chest CT was obtained (Fig. 3).