PMC9968551_01
(a)
Axial and
(b)
sagittal CT angiography images showing the retroesophageal aberrant right subclavian artery (small arrows). Nasogastric tube (larger arrows) and tracheostomy tube with bulb (asterix) is seen in situ. There is contrast extravasation into the esophagus (curved arrows). CT, computed tomography.
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FI2190883-1
Computed tomography (CT) angiography ( Fig. 1 ) showed ARSA with retroesophageal course with active extravasation of contrast into the esophagus. 
A digital subtraction angiogram performed in antero-posterior oblique projection showing the aberrant right subclavian artery (asterix) with arterioesophageal fistula (larger arrow) and contrast extravasation along the esophagus (curved arrows) close to nasogastric tube (arrow heads). Left subclavian artery is also visualized in same image (dashed arrow).
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FI2190883-2
ARSA was done using 5F Vert catheter (Cook Medical, Ireland) which revealed active, rapid extravasation of contrast into the esophagus, suggesting ARSA-esophageal fistula ( Fig. 2 ). A plan was made to perform a balloon occlusion followed by deployment of an covered stent across defect.