title: [Hypoglossal nerve palsy caused by hypoplasia of the atlas and ossification of the posterior longitudinal ligament].
abstract: A 50-year-old woman developed discomfort of oral cavity and dysarthria. Her tongue showed a slight left-deviation and atrophy in the left side in a month. Examination with X-p, CT, and MRI showed hypoplasia of the atlas and high cervical ossification of the posterior longitudinal ligament (OPLL) from C1 to C5. Thus, combination of congenital hypoplasia of the atlas and acquired high cervical OPLL reduced a function of hypoglossal nerve, which resulted in the palsy. In a case of unilateral hypoglossal palsy, a possible lesion of foramen magnum should be considered.
authors.affiliation: Department of Neurology, Ota Memorial Hospital, Japan.
authors.forename: Kentaro
authors.initials: K
authors.lastname: Deguchi
authors.forename: Yasuhiro
authors.initials: Y
authors.lastname: Manabe
authors.forename: Koji
authors.initials: K
authors.lastname: Takahashi
authors.forename: Taisei
authors.initials: T
authors.lastname: Ota
authors.forename: Kazuhiro
authors.initials: K
authors.lastname: Takamatsu
authors.forename: Kentaro
authors.initials: K
authors.lastname: Ida
authors.forename: Kosuke
authors.initials: K
authors.lastname: Ota
authors.forename: Koji
authors.initials: K
authors.lastname: Abe
mesh_terms: D001270:Cervical Atlas / Q000002:abnormalities* / Q000000981:diagnostic imaging; D005260:Female; D006801:Humans; D020437:Hypoglossal Nerve Diseases / Q000209:etiology*; D008279:Magnetic Resonance Imaging; D008875:Middle Aged; D017887:Ossification of Posterior Longitudinal Ligament / Q000150:complications* / Q000175:diagnosis; D014057:Tomography, X-Ray Computed