title: Intracerebral schwannoma--a rare cause of epilepsy.
abstract: BACKGROUND
  We report a case of schwannoma occurring in an intra-axial location causing seizures.
  
  
  METHODS
  A 13-year-old girl presented with a 4-month history of seizures. Preoperative computed tomography scan and magnetic resonance imaging revealed an enhancing right frontal lobe tumour with surrounding oedema.
  
  
  METHODS
  The patient underwent craniotomy and a well-circumscribed tumour was completely resected. Histology with immunohistochemistry confirmed the diagnosis of an intracerebral schwannoma.
  
  
  RESULTS
  The patient made a complete recovery and was seizure-free at 1-year follow-up.
  
  
  CONCLUSIONS
  Intracerebral schwannomas are rare, benign tumours. They may mimic astrocytomas or malignant tumours, and it is important to differentiate them from other neoplasms with less favourable outcomes. The neuroimaging features are, however, non-specific and definitive diagnosis can only be made on histology.
authors.affiliation: Department of Neuroradiology, National Neuroscience Institute, 11 Jalan Tan Tock Seng, Singapore 308433. soke_miang_chng@ttsh.com.sg
authors.forename: S M
authors.initials: SM
authors.lastname: Chng
authors.forename: C C
authors.initials: CC
authors.lastname: Lim
authors.forename: W T
authors.initials: WT
authors.lastname: Seow
mesh_terms: D000293:Adolescent; D001932:Brain Neoplasms / Q000175:diagnosis* / Q000601:surgery; D003399:Craniotomy / Q000379:methods; D005260:Female; D005500:Follow-Up Studies; D005625:Frontal Lobe; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods; D009442:Neurilemmoma / Q000175:diagnosis* / Q000601:surgery; D011300:Preoperative Care / Q000379:methods; D018570:Risk Assessment; D012640:Seizures / Q000175:diagnosis / Q000209:etiology*; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome