Fig. 2

No pulse could be detected from the right lower limb of this patient before the surgery. The skin was colder and paler than another limb. CTs showed an antegrade propagation of the dissection from the ascending aorta to the left iliac artery, accompanied with a complete occlusion of the right common iliac artery, whose orifice was obstructed by a tense false lumen (arrow). Low-density enhanced of the right femoral artery was detected, probably due to the collateral circulation a, b. The patient was performed ascending aorta replacement and triple-branched stent graft implantation. Post-operative CT showed the perfusion of right common iliac artery was complete restored c, d