case_images: PMC10940733_01
case_images: Electroencephalographic hallmarks. Examples of midline rhythmic waveforms (white arrows in A,C), asynchronous spike-and-wave discharges (arrowhead in B,D), anterior fast activity (thin black arrows in C,D) in drowsiness (10-20 International System, Bipolar Montage, 20-sec epoch pages. Sensitivity: 200 microV/cm; high- frequency filter: 70 Hz; low-frequency filter 1 Hz).
case_images: gr1.jpg
case_images: PMC10940733_01_gr1.jpg
case_images: f0005
case_images: The electroencephalogram (EEG) depicted a peculiar pattern in the wake, enhanced in sleep, composed by rhythmic notched sharp wave with a wax-and-wane appearance on the anterior midline electrodes; asynchronous centrotemporal and temporo-occipital epileptiform discharges and anterior fast activity co-occurred (Fig. 1).