title: Acquired Chiari I malformation and syringomyelia associated with bilateral chronic subdural hematoma. Case report.
abstract: The authors report a case of bilateral chronic subdural hematoma in a 25-year-old woman who had occipital and neck pain. Magnetic resonance imaging revealed progressive caudal descent of the cerebellar tonsils (acquired Chiari I malformation) and a large eccentric syrinx in the spinal cord from the C3-T7 levels. Spontaneous disappearance of the chronic subdural hematomas resulted in radiographic resolution of both lesions, as well as clinical improvement. Theories of syringomyelia formation, the relationship to acquired Chiari I malformation, and the implications of this case are discussed.
authors.affiliation: Department of Neurosurgery, Kyushu University, Fukuoka, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Morioka
authors.forename: T
authors.initials: T
authors.lastname: Shono
authors.forename: S
authors.initials: S
authors.lastname: Nishio
authors.forename: K
authors.initials: K
authors.lastname: Yoshida
authors.forename: K
authors.initials: K
authors.lastname: Hasuo
authors.forename: M
authors.initials: M
authors.lastname: Fukui
mesh_terms: D000328:Adult; D001139:Arnold-Chiari Malformation / Q000175:diagnosis / Q000209:etiology*; D002908:Chronic Disease; D005260:Female; D006408:Hematoma, Subdural / Q000150:complications* / Q000175:diagnosis; D006801:Humans; D008279:Magnetic Resonance Imaging; D012075:Remission, Spontaneous; D013595:Syringomyelia / Q000175:diagnosis / Q000209:etiology*