case_images: PMC9829698_01
case_images: Neuroimages and video-electroencephalographic findings of the patient. (A) Axial view of a scan obtained through brain magnetic resonance imaging (MRI) fluid-attenuated inversion recovery showing several nodules at the left frontal centrum semiovale with a signal intensity similar to that of the gray matter (arrows); the largest one was approximately 10 mm in diameter. (B) MRI coronal view revealing a relatively thin corpus callosum (arrows). (C) Three-dimensional demonstration of brain 18F-fluorodeoxyglucose positron emission tomography image with quantification parameters indicating reduced metabolism in the bilateral frontal lobes, right parietotemporal lobes, and the bilateral posterior cingulate but with more reduction on the right side. (D) Video-electroencephalography showing focal sharp waves and spike-and-wave complexes with phase reversals at F8 (square frame), followed by fast activities originating from the right hemisphere after a few seconds (bracket).
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case_images: PMC9829698_01_gr1.jpg
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case_images: Interictal brain 18F-fluorodeoxyglucose positron emission tomography indicated reduced metabolism in the right parietotemporal lobes, bilateral frontal lobes, and posterior cingulate (Fig. 1).