Carotid-cavernous fistula following mechanical thrombectomy of the tortuous internal carotid artery: A case report

Figure 3 Thrombectomy and carotid-cavernous fistula formation. A: After the aspiration thrombectomy, the digital subtraction angiography showed occlusion of the terminal bifurcation of the right internal carotid artery (arrow); B: After the first stent removal, angiography showed poor right middle cerebral artery (MCA) reflow and no carotid-cavernous fistula (CCF) (arrow); C and D: After a second stent thrombectomy, reexamination showed CCF (arrows); E: Reflow of the A1 segment of the right anterior cerebral artery to supply blood to the right MCA supply area (circle).