Postictal punctate hippocampal diffusion restriction: the chicken or the egg?

We postulate that punctate hippocampal DWI lesions can be postictal phenomenon. Recognizing this imaging finding is relevant for the therapeutic management, we encourage referring patients for video-EEG monitoring in case of unconclusive findings. Besides vasogenic oedema related to neuronal hyperactivity, venous compression could be a potential pathomechanism. Prospective postictal imaging studies could help to better understand and quantify punctate hippocampal DWI lesions.