title: Comparison between MR imaging findings of intracranial and extracranial schwannomas.
abstract: OBJECTIVE
  To evaluate the differences of MR imaging findings between intracranial and extracranial schwannomas.
  
  
  METHODS
  We retrospectively reviewed the MR images of 98 schwannomas and compared the imaging findings between intracranial and extracranial schwannomas.
  
  
  RESULTS
  The number of intratumoral cysts was greater in intracranial than in extracranial schwannomas (4.8±7.2 vs 1.8±4.1; p<0.05).
  
  
  CONCLUSIONS
  The number of intratumoral cysts was different between intracranial and extracranial schwannomas.
authors.affiliation: Department of Radiology, Gifu University School of Medicine, 1-1 Yanagido, Gifu 501-1194, Japan.
authors.forename: Tomohiro
authors.initials: T
authors.lastname: Ando
authors.affiliation: Department of Radiology, Gifu University School of Medicine, 1-1 Yanagido, Gifu 501-1194, Japan. Electronic address: hkato@gifu-u.ac.jp.
authors.forename: Hiroki
authors.initials: H
authors.lastname: Kato
authors.affiliation: Department of Radiology, Gifu University School of Medicine, 1-1 Yanagido, Gifu 501-1194, Japan.
authors.forename: Masayuki
authors.initials: M
authors.lastname: Matsuo
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001932:Brain Neoplasms / Q000000981:diagnostic imaging; D003560:Cysts / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D008875:Middle Aged; D009442:Neurilemmoma / Q000000981:diagnostic imaging*; D012189:Retrospective Studies; D055815:Young Adult
keywords: Extracranial schwannoma; Fascicular appearance; Hypointense rim; Intracranial schwannoma; Intratumoral cyst; Target sign