The British journal of radiology
-
Case Reports
Recanalisation of the internal carotid artery via the vasa vasorum after coil occlusion.
Antegrade recanalisation of a completely occluded internal carotid artery (ICA) via the vasa vasorum is extremely rare. Here, we report such a case after proximal endovascular coiling in a case of dissected (i.e. non-atherosclerotic) ICA. A 42-year-old man presented with thromboembolic stroke of the left frontal lobe owing to pseudo-occlusion of the left ICA manifesting as motor aphasia and right hemiparesis. ⋯ At follow-up, 38 months later, the patient was asymptomatic. Angiography demonstrated occlusion of the left ICA and multiple serpiginous vessels originating from the proximal internal and external carotid arteries and which filled the ICA distal to the occlusion. This case suggests that an ICA occluded by proximal coil embolisation-even in a non-atherosclerotic case-might be recanalised via the vasa vasorum.