title: [Association of idiopathic intracranial hypertension-Arnold-Chiari deformity: danger!].
abstract: OBJECTIVE
  The idiopathic intracranial hypertension (IIH) can lead to a fatal issue in presence of an Arnold-Chiari malformation (ACM).
  
  
  METHODS
  We report the case of an obese pregnant woman presenting intracranial hypertension without cerebral CT scan anomaly. The situation worsened in spite of acetazolamide use: alteration of the neurologic state and the ocular motility.
  
  
  RESULTS
  A magnetic resonance imaging (MRI) shows a type I ACM. The decompression of the cerebrospinal fluid by superior way is performed (pressure at 60 mmHg, normal composition) and followed by the neurosurgical cure of the Chiari. This allowed a total recuperation.
  
  
  CONCLUSIONS
  The IIH can be responsible for the decompensation of an ACM. A MRI and a rapid neurosurgical surgery are the rules without lumbar puncture temptation which can be fatal.
authors.affiliation: Service d'Ophtalmologie, Hôpital Erasme, ULB.
authors.forename: P
authors.initials: P
authors.lastname: Demols
authors.forename: S
authors.initials: S
authors.lastname: Vilain
authors.forename: C
authors.initials: C
authors.lastname: Van Nechel
mesh_terms: D000086:Acetazolamide / Q000627:therapeutic use; D000328:Adult; D000927:Anticonvulsants / Q000627:therapeutic use; D001139:Arnold-Chiari Malformation / Q000150:complications* / Q000175:diagnosis / Q000601:surgery; D005133:Eye Movements; D005260:Female; D006801:Humans; D019586:Intracranial Hypertension / Q000150:complications* / Q000175:diagnosis / Q000188:drug therapy; D008279:Magnetic Resonance Imaging; D009765:Obesity; D011247:Pregnancy; D011248:Pregnancy Complications
chemical_list: D000927:Anticonvulsants; D000086:Acetazolamide