PMC7501415_01
MRI findings. FLAIR images (axial plane, left; coronal plane, right).. Upper: Prior to serial seizures with complex hallucinations. Lesion in the posterior part of the right parahippocampal gyrus and in the hippocampal tail.. Lower: During serial seizures. Substantial volume increase of the lesion with extension toward the occipital cortex.
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Another MRI after seven weeks showed a complete return to pre-pregnancy state, suggesting that the changes represented post-ictal phenomena (Fig. 1).
PMC7501415_02
MRI findings. FLAIR images (axial plane, left; coronal plane, right).. Upper: Prior to serial seizures with complex hallucinations. Lesion in the posterior part of the right parahippocampal gyrus and in the hippocampal tail.. Lower: During serial seizures. Substantial volume increase of the lesion with extension toward the occipital cortex.
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PMC7501415_02_gr1.jpg
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Another MRI after seven weeks showed a complete return to pre-pregnancy state, suggesting that the changes represented post-ictal phenomena (Fig. 1).
Stereotypical ictal EEG activity associated with non-lateralizing visual hallucinations with spatial distortion during long-term monitoring (time 04.06.30 PM, see Table 2).. Montage: average, upper; bipolar longitudinal, lower. Electrographic seizures begin with slow 3-Hz delta activity in the right occipital and posterior temporal region (leads O2 and T6), evolve to spiky rhythmic 8-Hz activity; midway, the frequency declines to 4-Hz theta activity.
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Long-term video-scalp EEG was performed during episodic visual hallucinations and demonstrated corresponding ictal activity in the right temporo-occipital area (Fig. 2).