title: Benign Sphenoid Wing Meningioma Presenting with an Acute Intracerebral Hemorrhage - A Case Report.
abstract: We report an unusual case of a benign lateral sphenoid wing meningioma that presented with, and was masked by, an acute intracerebral hemorrhage.
  
  
  METHODS
  A 68-year-old woman was admitted after sudden onset of coma. Computed tomography (CT) revealed an intracerebral hemorrhage, without any underlying vascular pathology on CT angiography. During the surgery, we found a lateral sphenoid wing meningioma with intratumoral bleeding that extended into the surrounding brain parenchyma.
  
  
  RESULTS
  We removed the hematoma and resected the tumor completely in the same session. The histopathological classification of the tumor was a WHO grade I meningothelial meningioma. The patient recovered very well after surgery, without significant neurological sequelae.
  
  
  CONCLUSIONS
  Having reviewed the relevant references from the medical literature, we consider this event as an extremely rare presentation of a benign sphenoid wing meningioma in a patient without any predisposing medical factors. The possible mechanisms of bleeding from this tumor type are discussed.
authors.affiliation: Department of Neurosurgery, Oslo University Hospital - Rikshospitalet, Oslo, Norway.
authors.forename: Radek
authors.initials: R
authors.lastname: Frič
authors.affiliation: Department of Radiology and Nuclear Medicine, Oslo University Hospital - Rikshospitalet, Oslo, Norway.; Faculty of Medicine, University of Oslo, Oslo, Norway.
authors.forename: John K
authors.initials: JK
authors.lastname: Hald
authors.affiliation: Department of Pathology, Oslo University Hospital - Rikshospitalet, Oslo, Norway.
authors.forename: Ellen-Ann
authors.initials: EA
authors.lastname: Antal
keywords: brain tumors; intracerebral hemorrhage; intracranial meningioma; sphenoid wing