title: Acute subdural hematoma caused by an unruptured, thrombosed giant intracavernous aneurysm.
abstract: BACKGROUND
  Acute subdural hematoma (SDH) is an infrequent complication after aneurysmal subarachnoid hemorrhage. SDH associated with unruputed intracavernous aneurysm has never been reported.
  
  
  METHODS
  Single patient case report and review of relevent literature.
  
  
  RESULTS
  A 65-year-old woman with an unruptured, thrombosed giant intracavernous aneurysm developed an acute SDH 2 days after admission for cavernous sinus syndrome. Despite emergent evacuation of the SDH, the patient never regained consciousness because of brain herniation.
  
  
  CONCLUSIONS
  Acute SDH is a rare complication of ruptured, giant intracavernous aneurysms. Erosion of the cavernous sinus wall by acute enlargement of the aneurysm after thrombosis is the proposed mechanism for development of the SDH.
authors.affiliation: Neurosciences Critical Care Division, Johns Hopkins Hospital, Baltimore, MD, USA.
authors.forename: Antigone
authors.initials: A
authors.lastname: Triantafyllopoulou
authors.forename: Andrew
authors.initials: A
authors.lastname: Beaumont
authors.forename: John
authors.initials: J
authors.lastname: Ulatowski
authors.forename: Rafael J
authors.initials: RJ
authors.lastname: Tamargo
authors.forename: Panayiotis N
authors.initials: PN
authors.lastname: Varelas
mesh_terms: D000368:Aged; D002340:Carotid Artery Diseases / Q000150:complications / Q000175:diagnosis / Q000601:surgery; D020226:Cavernous Sinus Thrombosis / Q000150:complications* / Q000175:diagnosis / Q000601:surgery; D003399:Craniotomy / Q000379:methods; D004677:Encephalocele / Q000209:etiology; D005260:Female; D020199:Hematoma, Subdural, Acute / Q000175:diagnosis / Q000209:etiology* / Q000601:surgery; D006801:Humans; D002532:Intracranial Aneurysm / Q000150:complications* / Q000175:diagnosis / Q000601:surgery; D008279:Magnetic Resonance Imaging; D014057:Tomography, X-Ray Computed