title: Clinical Reasoning: A 34-year-old man with headache, diplopia, and hemiparesis.
authors.affiliation: From the Adult Neurology Residency Program (M.R.L., R.S.), Postgraduate Medical Education, University of Toronto; and the Department of Medicine (M.H.), Division of Neurology, St. Michael's Hospital, Toronto, Canada.
authors.forename: Matthew R
authors.initials: MR
authors.lastname: Lincoln
authors.affiliation: From the Adult Neurology Residency Program (M.R.L., R.S.), Postgraduate Medical Education, University of Toronto; and the Department of Medicine (M.H.), Division of Neurology, St. Michael's Hospital, Toronto, Canada.
authors.forename: Raphael
authors.initials: R
authors.lastname: Schneider
authors.affiliation: From the Adult Neurology Residency Program (M.R.L., R.S.), Postgraduate Medical Education, University of Toronto; and the Department of Medicine (M.H.), Division of Neurology, St. Michael's Hospital, Toronto, Canada. hoholm@smh.ca.
authors.forename: Marika
authors.initials: M
authors.lastname: Hohol
mesh_terms: D000328:Adult; D003937:Diagnosis, Differential; D004172:Diplopia / Q000209:etiology*; D006261:Headache / Q000209:etiology*; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D009103:Multiple Sclerosis / Q000150:complications / Q000175:diagnosis*; D010291:Paresis / Q000209:etiology*