Table 3 Various types of vascular rings and slings
From: Computed tomography in the evaluation of vascular rings and slings
Double aortic arch | Right arch dominant Left arch dominant Codominant Atretic smaller arches |
Right arch | Aberrant left subclavian artery with Kommerell’s diverticulum and left ligamentum arteriosum/patent ductus arteriosus Mirror image branching with intact retroesophageal ligamentum arteriosum Retroesophageal aortic arch with left descending aorta Right cervical aortic arch with left descending thoracic aorta and aberrant left subclavian artery with patent left ductus arteriosus or intact left ligamentum arteriosum |
Left arch | Aberrant right subclavian artery and right ligamentum arteriosum Retroesophageal aortic arch with right descending aorta Left aortic arch, aberrant right subclavian artery, common origin of carotid arteries anterior to the trachea Left cervical aortic arch with right descending aorta, aberrant right subclavian artery and right patent ductus/ligamentum arteriosum |
Anomalous innominate artery | |
Pulmonary artery sling | |
Rare cases | Ductus arteriosus sling Large cervical arch Sagittal compression by ascending and descending aorta Post-arterial switch Situs inversus with left arch and aberrant right subclavian artery and right ligamentum |