Fig. 1
From: Long term respiratory morbidity in patients with vascular rings: a review
3D volume rendering reconstruction of a cardiac CT in patient with Right Aortic Arch (RAA) and Aberrant Left Subclavian Artery (ALSA). The vascular structures together with the left duct ligament (not visible on CT) completely encircle the trachea (in blue) and the oesophagus (in violet). Panel A: front view. Panel B: back view. Panel C: trachea with the narrowing (red arrow) at the level of the ring