Background: Acute myelopathies represent a heterogeneous group of disorders with distinct
etiologies, clinical and radiologic features, and prognoses. Transverse myelitis (TM) is a
prototype member of this group in which an immune-mediated process causes neural injury
to the spinal cord, resulting in varying degrees of weakness, sensory alterations, and
autonomic dysfunction. TM may exist as part of a multifocal CNS disease (eg, MS),
multisystemic disease (eg, systemic lupus erythematosus), or as an isolated, idiopathic …