Vascular Ring Due to Right Aortic Arch with Mirror-Image Branching and Left Ligamentum Arteriosus: Complete Preoperative Diagnosis by Magnetic Resonance Imaging

Magnetic resonance imaging (MRI) has been increasingly employed in the evaluation of aortic arch abnormalities. We present a rare form of vascular ring, that of a right aortic arch with mirror-image branching and left ligamentum arteriosus, which was clearly defined preoperatively by MRI. The patient subsequently underwent successful surgical division of the vascular ring followed by improvement in respiratory symptoms.