Fig. 1

Brain magnetic resonance imaging and electroencephalography findings of Patient 1. Magnetic resonance image (A: diffusion-weighted imaging, B: fluid-attenuated inversion recovery imaging, C: Arterial spin labeling perfusion imaging) obtained in the acute phase shows high-intensity lesions and increased blood flow in the medial thalamus (arrows) and decreased blood flow in the cerebral cortex (arrowheads). Electroencephalogram obtained in the acute phase shows generalized periodic discharges with polyspikes (D). All these findings improved in the chronic phase (E-H)