== Patient 1: (A
== Patient 1: (A.a) T2-weighted images demonstrate diffuse periventricular hyperintense lesions (thick arrows, A.a). cells around blood vessels and activation of microglia without obvious features of clasmatodendrosis. == Conclusions == The GFAP-AB negative patient had both a striking (para)clinical similarity and an immediate response to immunotherapy. This supports the hypothesis that the clinical spectrum of…