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Investigations

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

Authoring team

The patient should be investigated to exclude any other possible cause of raised intracranial pressure.

  • CT or MRI - the ventricles, in contrast to hydrocephalus, are normal or reduced in size
  • visual field charting - demonstrate enlarged blind spot and peripheral field construction
  • lumbar puncture, if not contraindicated by clinical features and pressure measurement
  • monitor intracranial pressure if in doubt as to the diagnosis

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