title: Fulminant demyelinating encephalomyelitis: Insights from antibody studies and neuropathology.
abstract: OBJECTIVE
  Antibodies to myelin oligodendrocyte glycoprotein (MOG) are detectable in inflammatory demyelinating CNS diseases, and MOG antibody-associated diseases seem to have a better prognosis despite occasionally severe presentations.
  
  
  METHODS
  We report the case of a 71-year-old patient with acute visual and gait disturbance that dramatically worsened to bilateral amaurosis, tetraplegia, and respiratory insufficiency within a few days.
  
  
  RESULTS
  MRI showed multiple progressive cerebral and spinal lesions with diffusion restriction (including both optic nerves) and marginal contrast enhancement. Routine blood and CSF measures including oligoclonal bands were normal. At disease onset, MOG immunoglobulin G was detected (serum titer 1:1,280, corresponding CSF titer was 1:20) and remained positive in patient serum. Aquaporin-4 antibodies were absent at disease onset but seroconverted to positive at week 9. In addition, CSF glial fibrillary acid protein and myelin basic protein levels were very high at onset but decreased during disease course. After 4 months, the patient died despite immunomodulatory treatment. Postmortem neuropathologic examination revealed an acute multiple sclerosis (MS) defined by multiple demyelinating lesions with a pronounced destructive component and loss of astrocytes. Lesion pattern of optic chiasm met MS pattern II characterized by antibody and complement-mediated demyelination.
  
  
  CONCLUSIONS
  The case with the clinical presentation of an acute demyelinating encephalomyelitis with predominant optic and spinal involvement, absent oligoclonal bands, a histopathology of acute MS pattern II and development of aquaporin-4 antibodies extends the spectrum of MOG antibody-associated encephalomyelitis. Although, MOG antibodies are suspected to indicate a favorable prognosis, fulminant disease courses are possible and warrant an aggressive immunotherapy.
authors.affiliation: Clinical Department of Neurology (F.D.P., M.R., R.B., K.S., E.S., T.B.) and Department of Neuroradiology (P.R.), Medical University of Innsbruck; Institute of Neurology (R.H.) and Center for Brain Research (H.L.), Medical University of Vienna, Austria; and Departments of Neurology and Multiple Sclerosis Therapeutics (D.S., K.F.), Tohoku University Graduate School of Medicine, Sendai, Japan.
authors.forename: Franziska
authors.initials: F
authors.lastname: Di Pauli
authors.affiliation: Clinical Department of Neurology (F.D.P., M.R., R.B., K.S., E.S., T.B.) and Department of Neuroradiology (P.R.), Medical University of Innsbruck; Institute of Neurology (R.H.) and Center for Brain Research (H.L.), Medical University of Vienna, Austria; and Departments of Neurology and Multiple Sclerosis Therapeutics (D.S., K.F.), Tohoku University Graduate School of Medicine, Sendai, Japan.
authors.forename: Romana
authors.initials: R
authors.lastname: Höftberger
authors.affiliation: Clinical Department of Neurology (F.D.P., M.R., R.B., K.S., E.S., T.B.) and Department of Neuroradiology (P.R.), Medical University of Innsbruck; Institute of Neurology (R.H.) and Center for Brain Research (H.L.), Medical University of Vienna, Austria; and Departments of Neurology and Multiple Sclerosis Therapeutics (D.S., K.F.), Tohoku University Graduate School of Medicine, Sendai, Japan.
authors.forename: Markus
authors.initials: M
authors.lastname: Reindl
authors.affiliation: Clinical Department of Neurology (F.D.P., M.R., R.B., K.S., E.S., T.B.) and Department of Neuroradiology (P.R.), Medical University of Innsbruck; Institute of Neurology (R.H.) and Center for Brain Research (H.L.), Medical University of Vienna, Austria; and Departments of Neurology and Multiple Sclerosis Therapeutics (D.S., K.F.), Tohoku University Graduate School of Medicine, Sendai, Japan.
authors.forename: Ronny
authors.initials: R
authors.lastname: Beer
authors.affiliation: Clinical Department of Neurology (F.D.P., M.R., R.B., K.S., E.S., T.B.) and Department of Neuroradiology (P.R.), Medical University of Innsbruck; Institute of Neurology (R.H.) and Center for Brain Research (H.L.), Medical University of Vienna, Austria; and Departments of Neurology and Multiple Sclerosis Therapeutics (D.S., K.F.), Tohoku University Graduate School of Medicine, Sendai, Japan.
authors.forename: Paul
authors.initials: P
authors.lastname: Rhomberg
authors.affiliation: Clinical Department of Neurology (F.D.P., M.R., R.B., K.S., E.S., T.B.) and Department of Neuroradiology (P.R.), Medical University of Innsbruck; Institute of Neurology (R.H.) and Center for Brain Research (H.L.), Medical University of Vienna, Austria; and Departments of Neurology and Multiple Sclerosis Therapeutics (D.S., K.F.), Tohoku University Graduate School of Medicine, Sendai, Japan.
authors.forename: Kathrin
authors.initials: K
authors.lastname: Schanda
authors.affiliation: Clinical Department of Neurology (F.D.P., M.R., R.B., K.S., E.S., T.B.) and Department of Neuroradiology (P.R.), Medical University of Innsbruck; Institute of Neurology (R.H.) and Center for Brain Research (H.L.), Medical University of Vienna, Austria; and Departments of Neurology and Multiple Sclerosis Therapeutics (D.S., K.F.), Tohoku University Graduate School of Medicine, Sendai, Japan.
authors.forename: Douglas
authors.initials: D
authors.lastname: Sato
authors.affiliation: Clinical Department of Neurology (F.D.P., M.R., R.B., K.S., E.S., T.B.) and Department of Neuroradiology (P.R.), Medical University of Innsbruck; Institute of Neurology (R.H.) and Center for Brain Research (H.L.), Medical University of Vienna, Austria; and Departments of Neurology and Multiple Sclerosis Therapeutics (D.S., K.F.), Tohoku University Graduate School of Medicine, Sendai, Japan.
authors.forename: Kazuo
authors.initials: K
authors.lastname: Fujihara
authors.affiliation: Clinical Department of Neurology (F.D.P., M.R., R.B., K.S., E.S., T.B.) and Department of Neuroradiology (P.R.), Medical University of Innsbruck; Institute of Neurology (R.H.) and Center for Brain Research (H.L.), Medical University of Vienna, Austria; and Departments of Neurology and Multiple Sclerosis Therapeutics (D.S., K.F.), Tohoku University Graduate School of Medicine, Sendai, Japan.
authors.forename: Hans
authors.initials: H
authors.lastname: Lassmann
authors.affiliation: Clinical Department of Neurology (F.D.P., M.R., R.B., K.S., E.S., T.B.) and Department of Neuroradiology (P.R.), Medical University of Innsbruck; Institute of Neurology (R.H.) and Center for Brain Research (H.L.), Medical University of Vienna, Austria; and Departments of Neurology and Multiple Sclerosis Therapeutics (D.S., K.F.), Tohoku University Graduate School of Medicine, Sendai, Japan.
authors.forename: Erich
authors.initials: E
authors.lastname: Schmutzhard
authors.affiliation: Clinical Department of Neurology (F.D.P., M.R., R.B., K.S., E.S., T.B.) and Department of Neuroradiology (P.R.), Medical University of Innsbruck; Institute of Neurology (R.H.) and Center for Brain Research (H.L.), Medical University of Vienna, Austria; and Departments of Neurology and Multiple Sclerosis Therapeutics (D.S., K.F.), Tohoku University Graduate School of Medicine, Sendai, Japan.
authors.forename: Thomas
authors.initials: T
authors.lastname: Berger