Section Editor: Sandy Cheng-Yu Chen, M.D.
Taipei Medical University Hospital, Taipei, Taiwan
Figure Caption
Status epilepticus is defined as continuous seizures lasting more than 30 minutes or 2 or more seizures without full recovery between them. If present, imaging findings reflect parenchymal transient edema related to epileptic focus, typically in the cortical gray matter or subcortical white matter. On MRI these areas present with mild mass effect, high signal intensity on T2/FLAIR images, and hypointense signal on T1WI (arrow in A). DWI shows restriction on ADC map (arrow in B). Enhancement after gadolinium is variable (A). In the chronic stage, the affected region may develop atrophy (arrow in C).