PMC5765248_01
EEG and Brain MRI. Ictal EEG showing the onset of rhythmic beta activity beginning in the right temporal area (arrowhead) (A). Fluid-attenuated inversion recovery axial (B and C) and T1-weighted coronal (D and E) brain MRI scans showing an enhanced mass lesion in the right hippocampus (arrows).
jcn-14-120-g001.jpg
PMC5765248_01_jcn-14-120-g001.jpg
F1
Concurrent with the headache, the EEG showed the onset of rhythmic beta activity beginning in the right temporal area and spreading to the right hemisphere lasting for approximately 30 seconds (Fig. 1A, Supplementary Video 1 in the online-only Data Supplement). Brain MRI revealed a solitary enhanced lesion in the right hippocampus, suggesting a brain tumor (Fig. 1B-E).