Fig. 2

Relevant neuroimaging showcasing key imaging findings. a Right cervicocerebral angiogram with multiple filling defects at the level of the carotid stent just proximal to the petrous bone. Further filling defects extending up through the peak petrous and cavernous segments suggests thrombosis. There is antegrade flow into the middle and anterior cerebral arteries. b Absent flow signal in the right cervical internal carotid artery (ICA) system thought to be pseudo-occlusion. c Right spectral carotid Doppler analysis showing blunting of the arterial waveform consistent with nonhemodynamically significant stenosis of 1–49% in the distal internal carotid artery