 MRI obtained yesterday demonstrated a small focus of restricted diffusion with matching ADC hypointensity located in right parietal subcortical white matter without associated mass effect or susceptibility are normally. It was T1 hypointense and T2 hyperintense.The current exam demonstrates no abnormal enhancement. Specifically, the aforementioned focus of restricted diffusion does not enhance.
There is no abnormal enhancement. The differential diagnosis most likely includes acute ischemia or post-ictal abnormality. An isolated focus of encephalitis could have this nonenhancing appearance and inflammation is felt to be unlikely.