Figure 1
Continuousvideo-EEG and brain MRI of the patient. (A) Video-EEG shows continuous generalized polyspike-and-wave discharges, more prominent on the left hemisphere. (B) A follow-up EEG shows diffuse theta slowing. (C) T2-weighted brain MRI showed unilateral “closed lips”, lined by the cortical grey matter in the right parietal area (white arrows).