Fig. 7
From: Computed tomography in the evaluation of vascular rings and slings
Circumflex right aortic arch. a Axial CT image shows a right aortic arch (arrow), which extends behind the oesophagus to reach the side. b Axial CT image at a lower level shows the arch has now reached the right (arrow) and continues as the descending aorta on the left. c Axial CT image at a lower level shows the left descending thoracic aorta (arrow)