title: Horner Syndrome in a Case of Neuromyelitis Optica.
abstract: A 58-year-old right-handed woman presented with neck pain and right hemibody decreased pain and temperature sensation. Over the next 3 days, she developed left ptosis and miosis. The Horner syndrome was confirmed with 0.5% apraclonidine and neuromyelitis optica immunoglobulin G antibody titres were positive. Magnetic resonance imaging of the cervical spine showed a longitudinally extensive intramedullary expansile lesion more prominent on the left, with post-contrast enhancement extending from C2 to C5, consistent with neuromyelitis optica. This patient was diagnosed with neuromyelitis optica with an associated left Horner syndrome.
authors.affiliation: Department of Neurology.
authors.forename: Lilia
authors.initials: L
authors.lastname: Lovera
authors.affiliation: Department of Ophthalmology, Loyola University Medical Center Maywood, Illinois USA.
authors.forename: Walter M
authors.initials: WM
authors.lastname: Jay
authors.affiliation: Department of Neurology.
authors.forename: Jose
authors.initials: J
authors.lastname: Biller
keywords: Horner syndrome; NMO IgG antibody; neuromyelitis optica