PMC5318346_01
Neuroimaging and ictal scalp EEG sample.. MRI images on the left (top axial, lower coronal), red arrows indicating dysplastic cortex, and ictal scalp EEG sample on the right. The patient was laughing during and between recurring paroxysms of spiking or paroxysmal fast activity (her photo and scalp EEG sample is on the right, recorded on an anterior-posterior bipolar montage).
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MRI, scalp-video-EEG, ictal SPECT, as well as intracranial EEG monitoring and intraoperative electrocorticography. MRI revealed cortical thickening and dysplasia involving the left parietal operculum, which extended to the posterior insula (Fig. 1A).