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. 2022 May 23;3(21):CASE22116. doi: 10.3171/CASE22116

FIG. 2.

FIG. 2.

Right carotid injection before endovascular treatment showing occlusion of the SSS, right TS, and SS in the venous phase, anteroposterior (A) and lateral (B) views. Right carotid injection after the sixth pass of the stent and the aspiration catheter, demonstrating stagnant venous flow in the right cortical vein in the middle venous phase (arrows), anteroposterior (C) and lateral (D) views, and showing contrast pooling in the SSS with the defect of contrast in the posterior SSS in the late venous phase (arrowheads), anteroposterior (E) and lateral (F) views.