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Aortic dissection (AD) is a catastrophic disease involving the aorta.Most intimal tears are located in the ascending aorta or the first portion of the descending aorta.1 It is a rare case that the proximal tear originates from the left subclavian artery (LSA).Virtual endoscopy (VE) technology could provide us a specific perspective to see from intraluminal to the outside and was especially helpful to look for and indentify complicated intimal tears.2 Vascular occluder is a useful device to treat vessel diseases alone or combined with other appratus.3 In the present report,we described one case of type BAD with a proximal tear located at the root of LSA.This tear was indentified by VE,confirmed by balloon inflation blocking and sealed with an occluder,while the second tear was repaired with one stent graft (SG).