PMC4287913_01
Digital subtraction angiography, AP (a) and lateral view (b), revealing the mid-basilar occlusion and the origin of the PPHA from the cervical segment of the ICA. The occlusion is marked with a small black arrow. The PPHA is marked with a white arrow
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F1
The digital subtraction arteriogram also revealed the right PPHA originating at approximately the C2-3 disk space and an occlusion within the mid-portion of the BA, distal to the origin of the anterior inferior cerebellar arteries [Figure 1].
Arteriogram following manual aspiration thrombectomy, showing full recanalization of the basilar artery, Towne's projection (a) and lateral view (b), consistent with TICI 3 flow
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F2
The microwire and microcatheter were removed and after two attempts of manual aspiration using a 20 cc syringe, complete revascularization of the BA was achieved, consistent with TICI 3 flow [Figure 2].