Antibodies to MOG in CSF only: pathological findings support the diagnostic value.

Scarce pathological brain evaluations confirmed the distinct entity of MOG-Abs-associated disorders (MOGAD), characterised by relative axonal sparing, perivenous, subpial, cortical and confluent primary demyelination, reactive gliosis, and inflammatory infiltrates predominantly constituted by granulocytes, macrophages, and CD4 + T cells [[2], [6]]. Spinal cord MRI showed multiple short T2-hyperintense lesions involving the spinal cord from the cranio-cervical junction to T12 and a central tumefactive lesion extending longitudinally from T9 to the conus (Fig. Antibodies to myelin oligodendrocyte glycoprotein (MOG-Abs) define a distinct entity of inflammatory CNS diseases, commonly presenting with subacute optic neuritis and/or myelitis in adults and encephalomyelitis in children [[5]]. We herein report the first autoptic findings of brain, spinal cord, nerve roots, and leptomeninges of a patient with MOG-Abs positivity in CSF only. [Extracted from the article]