Neuromyelitis OpticaAquaporin 4Myelitis, TransverseImmunoglobulin GAutoantibodiesDemyelinating Autoimmune Diseases, CNSMultiple SclerosisOptic NeuritisOptic NerveSpinal CordOligoclonal BandsMethylprednisoloneArea PostremaImmunoglobulinsParaneoplastic Syndromes, Nervous SystemMyelitisParaneoplastic Syndromes, OcularMagnetic Resonance ImagingImmunoglobulin AImmunoglobulin MComplement System ProteinsAstrocytesRecurrence