MOG and myeloid sarcoma: According to the current criteria, three elements are necessary to diagnose MOGAD: 1—typical clinical picture of the demyelinating syndrome: ADEM, ON, TM or, less frequently, cerebral cortical encephalitis, brainstem presentation or cerebellar presentation; 2—the presence of anti-MOG antibodies in a clear titer; 3—exclusion of another/better diagnosis including MS [17,18,19,20,21,22].