Left Aortic Arch With Aberrant Right Subclavian Artery

Etiology: congenital
UGI: posterior indentation on the esophagus
Clinical: usually asymptomatic but occasionally can have dysphagia lusora

Radiology Cases of Left Aortic Arch With Aberrant Right Subclavian Artery

UGI of left aortic arch with aberrant right subclavian artery — AP (left) and lateral (right) images from an upper GI exam shows a left sided aortic arch and a posterior indentation on the esophagus.