title: Extramedullary Cavernous Hemangioma with Intradural and Extradural Growth and Clinical Symptoms of Brown-Séquard Syndrome: Case Report and Review of the Literature.
abstract: BACKGROUND
  Primary spinal tumors are rare. Symptoms depend on the size and location of the tumor.
  
  
  METHODS
  A patient presented with a rare clinical finding, Brown-Séquard syndrome. The symptoms were caused by an extramedullary tumor compressing on the thoracic spinal cord. Pathologic examination showed cavernous hemangioma with growth both intradurally and extradurally.
  
  
  CONCLUSIONS
  This is an extremely rare finding; to our knowledge, only 1 case report has been published before in which a spinal cavernous hemangioma had intradural and extradural growth. The clinical symptoms of Brown-Séquard syndrome have not been described before in the findings of spinal cavernous hemangiomas.
authors.affiliation: Department of Neurosurgery, Landspítali University Hospital, Reykjavík, Iceland. Electronic address: bryndisbaldvins@gmail.com.
authors.forename: Bryndís
authors.initials: B
authors.lastname: Baldvinsdóttir
authors.affiliation: Department of Pathology, Landspítali University Hospital, Reykjavík, Iceland.
authors.forename: Gígja
authors.initials: G
authors.lastname: Erlingsdóttir
authors.affiliation: Department of Radiology, Landspítali University Hospital, Reykjavík, Iceland.
authors.forename: Ólafur
authors.initials: Ó
authors.lastname: Kjartansson
authors.affiliation: Department of Neurosurgery, Landspítali University Hospital, Reykjavík, Iceland; Faculty of Medicine, University of Iceland, Reykjavík, Iceland.
authors.forename: Ingvar Hákon
authors.initials: IH
authors.lastname: Ólafsson
mesh_terms: D000368:Aged; D018437:Brown-Sequard Syndrome / Q000150:complications* / Q000000981:diagnostic imaging / Q000601:surgery; D004388:Dura Mater / Q000000981:diagnostic imaging; D006392:Hemangioma, Cavernous / Q000150:complications* / Q000000981:diagnostic imaging / Q000601:surgery; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D013125:Spinal Neoplasms / Q000150:complications* / Q000601:surgery
keywords: Brown-Séquard syndrome; Cavernous hemangioma; Extradural; Extramedullary; Intradural; Spinal tumor