PMC9852614_01
Preoperative CTA of the aorta showed a right-sided aortic arch with an abnormal great branch (A). Aortic DSA showed that the left subclavian artery was not visible (B). Left subclavian artery supplied by the left vertebral artery (C). LSA, left subclavian artery; LCCA, left common carotid artery.
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F1
The right aortic arch and aberrant great branch of the aortic arch were detected by thoracic aortic computed-tomography angiography (CTA) (Figure 1A). The left subclavian artery was not visible. as revealed by the aortic arc digital subtraction angiography (DSA) (Figure 1B). The left vertebral artery (LVA) supplied the left subclavian artery (LSA) (Figure 1C).