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Laboratory and pathological workup for evidence of inflammatory pathogenesis including myelin oligodendrocyte glycoprotein (MOG)-associated disease (MOGAD) and neuromyelitis optica. CSF oligoclonal band assay detected no unique IgG bands.
| Test | Result | Reference |
| MOG fluorescence-activated cell sorting assay | Negative | |
| Cerebrospinal fluid oligoclonal band assay | Not detected | |
| Neuromyelitis optica IgG autoantibodies | < .5> | 0–3 |
