case_images: PMC9251299_01
case_images: (A) T2 fluid-attenuated inversion recovery (T2-FLAIR) magnetic resonance imaging showing a suspiciously unclear gray-white matter boundary around the left calcarine sulcus (white arrow). T1 magnetic resonance imaging showing a suspiciously unclear gray-white matter boundary around the left calcarine sulcus (black arrow). Positive emission tomography showing low metabolism at the cortex around the left calcarine sulcus (white arrow). (B) EEG background: generalized 2-2.5 Hz slow spike waves (SSWs) during wakefulness and generalized paroxysmal fast activity (GPFA) during sleep.
case_images: fneur-13-857767-g0001.jpg
case_images: PMC9251299_01_fneur-13-857767-g0001.jpg
case_images: F1
case_images: MRI showed a suspiciously unclear gray-white matter boundary around the left calcarine sulcus (Figures 1, 2), which also showed low metabolism on positron emission tomography (Figure 1).
case_images: EEG onset: epileptic spasm and tonic seizure involved general EEG onsets with little localization value.
case_images: fneur-13-857767-g0002.jpg
case_images: PMC9251299_01_fneur-13-857767-g0002.jpg
case_images: F2
case_images: MRI showed a suspiciously unclear gray-white matter boundary around the left calcarine sulcus (Figures 1, 2), which also showed low metabolism on positron emission tomography (Figure 1).