Review
Copyright ©The Author(s) 2015.
World J Radiol. Dec 28, 2015; 7(12): 459-474
Published online Dec 28, 2015. doi: 10.4329/wjr.v7.i12.459
Figure 16
Figure 16 Double aortic arch. Serial axial images (A-D) of thorax (in caudo-cranial direction) reveal 2 aortic arches encircling and compressing trachea (t) and esophagus (e). Ipsilateral subclavian and common carotid arteries arise from each arch giving a characteristic “4-vessel sign” (arrows in D).