case_images: PMC11744465_01
case_images: Clinical data of the patient. (a) Axial T2WI scan showing widened extracranial space in the bilateral frontal regions, with high signal changes in the cerebrospinal fluid (CSF) at the widened areas (yellow star). (b) Axial T1WI scan indicating widened extracranial space in the bilateral frontal regions, with low signal changes in the CSF at the widened areas (yellow star). (c) Sagittal T2WI scan revealing widened extracranial space in the bilateral frontal regions, with high signal changes in the CSF at the widened areas (yellow star). (d) Video electroencephalogram monitoring during sleep period showing frequent discharge of long-duration low-to-medium amplitude 2-3-Hz spike-slow and polyspike-slow wave complexes, with significant activity in the frontal poles, frontal regions, and right anterior temporal area (red boxes show exceptional areas).
case_images: MGG3-13-e70059-g001.jpg
case_images: PMC11744465_01_MGG3-13-e70059-g001.jpg
case_images: mgg370059-fig-0001
case_images: During sleep monitoring, prolonged low-to-medium-amplitude 2-3-Hz spike-slow and polyspike-slow wave complexes were frequently observed, predominantly in the frontal pole, frontal region, and right anterior temporal region (Figure 1a). Cranial MRI revealed bilateral frontotemporal and falx cerebri-adjacent extracerebral space widening (Figure 1b).