PMC6739695_01
Angio-CT showing the occlusion of the right internal carotid artery (arrow). The "flute beak" aspect is suggestive of carotid artery dissection.
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F1
An urgent head computed tomography (CT) showed no active parenchymal lesions; an angio-CT of the neck vessels and of the intracranial vessels showed reduction of caliber of the right internal carotid artery from its origin and then occlusion of the vessel from the C1-C2 level, involving the extracranial and intracranial tract (Fig. 1).
a Brain MRI scan (coronal FLAIR sequence) shows a high signal intensity area on the right hemisphere, including also the tongue area of the primary motor cortex (arrow). b Brain MRI scan (axial diffusion-weighted image) shows restricted diffusion with high signal intensity in the same area (arrow).
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F2