title: [Intracranial aneurysms presenting with ischemic stroke].
abstract: OBJECTIVE
  To report four cases of patient with an acute ischemic event as a presenting symptom of a berry aneurysm.
  
  
  METHODS
  One male and three female (aged range 38 to 65 years) patients were admitted for acute stroke. The neuroradiologic finding disclosed aneurysm thrombosis, inferior to twenty five millimetres in three cases. Lumbar puncture was done in one case and showed subarachnoid haemorrage.
  
  
  CONCLUSIONS
  We will discuss the hypothesis leading to the mechanism of aneurysm thrombosis. Two theories will be presented: "hemodynamic" and "parietal" modifications. We will propose a management protocol for these patients with atypical presentation of intracranial aneurysms given the potential risk of rupture.
  
  
  CONCLUSIONS
  The natural history of intracranial aneurysms is still not fully understood. Nevertheless, aneurym thrombosis may occur and lead to ischemic stroke.
authors.affiliation: Service de Neuroradiologie, Hôpital G et R Laënnec, 44093 Nantes cedex.
authors.forename: K
authors.initials: K
authors.lastname: Warin-Fresse
authors.forename: E
authors.initials: E
authors.lastname: Auffray-Calvier
authors.forename: H
authors.initials: H
authors.lastname: Desal
authors.forename: B
authors.initials: B
authors.lastname: Guillon
authors.forename: A
authors.initials: A
authors.lastname: De Kersaint-Gilly
mesh_terms: D000328:Adult; D000368:Aged; D002545:Brain Ischemia / Q000175:diagnosis* / Q000209:etiology; D002533:Cerebral Angiography; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D002532:Intracranial Aneurysm / Q000150:complications / Q000175:diagnosis*; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D014057:Tomography, X-Ray Computed