title: [Ischemic stroke revealed by a thunderclap headache: contribution of diffusion-weighted mri sequences].
abstract: BACKGROUND
  Sub-arachnoid hemorrhage, cerebral venous thrombosis and cerebral reversible angiopathies are the main causes of secondary thunderclap headache. Ischemic stroke is rarely revealed by thunderclap headache.
  
  
  METHODS
  A 80-year-old woman developed for the first time a thunderclap headache associated with transient distal motor deficit of the right hand. Diffusion-weighted sequences revealed a recent left infarct in a vascular border zone.
  
  
  CONCLUSIONS
  Ischemic stroke is a rare cause of thunderclap headache but practitioners should bear in mind this etiology when the diagnostic work-up is negative. Diffusion-weighted sequences of the brain MRI can provide the diagnosis.
authors.affiliation: Service de Neurologie et Pathologie Neurovasculaire, (EA 2691), Hôpital Salengro, CHRU de Lille, 59037 Lille Cedex.
authors.forename: A
authors.initials: A
authors.lastname: Annic
authors.forename: C
authors.initials: C
authors.lastname: Lucas
mesh_terms: D000369:Aged, 80 and over; D001921:Brain / Q000098:blood supply* / Q000473:pathology*; D002545:Brain Ischemia / Q000150:complications* / Q000175:diagnosis*; D002560:Cerebrovascular Circulation / Q000502:physiology; D003937:Diagnosis, Differential; D038524:Diffusion Magnetic Resonance Imaging / Q000379:methods*; D005260:Female; D006261:Headache / Q000175:diagnosis* / Q000209:etiology*; D006801:Humans