Nelson Textbook of Pediatrics 22nd Edition | Chronic autoimmune demyelinating disorder. Pediatric-onset MS (POMS) is relapsing-remitting. Diagnosis: McDonald criteria (dissemination in space and time). MRI: periventricular, juxtacortical, infratentorial, spinal cord lesions. CSF: oligoclonal bands. Acute relapse: IV methylprednisolone. Disease-modifying therapies (DMTs): fingolimod (FDA-approved for β₯10 years), rituximab, ocrelizumab, natalizumab.
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