title: Bilateral trochlear nerve palsy in a patient with neuromyelitis optica.
abstract: We present a unique case of isolated bilateral simultaneous cranial nerve (CN) IV palsy in a patient with neuromyelitis optica (NMO). Although some CN IV abnormalities have been described in multiple sclerosis (MS), no case of isolated bilateral simultaneous CN IV has been reported, to our knowledge, in either NMO or MS.
authors: Department of Clinical Neurological Sciences, University of Western Ontario, London, Ontario, Canada.
authors: Philippe
authors: P
authors: Rizek
authors: Department of Clinical Neurological Sciences, University of Western Ontario, London, Ontario, Canada; Department of Ophthalmology, University of Western Ontario, London, Ontario, Canada.
authors: David
authors: D
authors: Nicolle
authors: Department of Medical Imaging, University of Western Ontario, London, Ontario, Canada.
authors: Keng
authors: K
authors: Yeow Tay
authors: Department of Clinical Neurological Sciences, University of Western Ontario, London, Ontario, Canada. Electronic address: marcelo.kremenchutzky@lhsc.on.ca.
authors: Marcelo
authors: M
authors: Kremenchutzky
keywords: Clinical-imagingcorrelations; Extra-ocular movements; MRI; Multiple sclerosis; NMO; Trochlear nerve