Neuromyelitis OpticaAquaporin 4Myelitis, TransverseAutoantibodiesDemyelinating Autoimmune Diseases, CNSMultiple SclerosisOptic NeuritisImmunoglobulin GOptic NerveSpinal CordOligoclonal BandsMethylprednisoloneArea PostremaParaneoplastic Syndromes, Nervous SystemMyelitisMagnetic Resonance ImagingParaneoplastic Syndromes, OcularAstrocytesRecurrenceComplement System ProteinsMultiple Sclerosis, Relapsing-Remitting