PMC8261171_01
EEG pattern at the admission time:subcontinuous slow high-voltage activity focused on the left front-central regions.
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PMC8261171_01_CRIPE2021-5568827.001.jpg
fig1
In order to exclude epileptic seizures, the electroencephalogram (EEG) was performed, and a subcontinuous slow high-voltage activity focused on the left front-central regions was found (Figure 1).
Brain neuroimaging results. (a) MRI: ischemic injury in the left frontoparietal region. (b) MRA: stenosis tightened by the left ICA and the thinning and irregularity of the left MCA.
CRIPE2021-5568827.002.jpg
PMC8261171_01_CRIPE2021-5568827.002.jpg
fig2
Brain MRI and magnetic resonance angiography (MRA) were performed for a better diagnostic definition, and hyperintense alterations of the frontoparietal signal, extended to the corpus callosum, were found in long-TR sequences (Figure 2(a)). The MRA study showed both the tightened stenosis of the left internal carotid artery (ICA) and the thinning and irregularity of the left middle carotid artery (MCA), data that allowed us to diagnose the left ICA dissection (Figure 2(b)).