Idiopathic intracranial hypertension (IIH): other investigations

Written and reviewed by Dr Ibrahim Imam, Consultant Neurologist. Last reviewed .

Idiopathic intracranial hypertension (IIH): other investigations. The may be sufficient in typical IIH. Fully referenced neurology checklist.

Contrast computed tomography (CT)

  • The may be sufficient in typical IIH
  • It may help to rule venous sinus thrombosis (VST), tumours, and meningeal infiltration
  • CT venogram may demonstrate bilateral transvers sinus stenosis (BTSS)

Ophthalmic assessments

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Electron microscopy: features

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Pathological features

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Emerging investigations

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References

  1. Dhungana S, Sharrack B, Woodroofe N. Idiopathic intracranial hypertension. Acta Neurol Scand 2010; 121:71-82.
  2. Friedman DI, Jacobson DM. Idiopathic intracranial hypertension. J Neuro Ophthalmol 2004; 24:138-145.
  3. Friedman, DI, Liu, GT, and Digre, KB. Revised diagnostic criteria for the pseudotumor cerebri syndrome in adults and children. Neurology 2013; 81:1159–1165.
  4. Schmidt C, Wiener E, Hoffmann J, et al. Structural olfactory nerve changes in patients suffering from idiopathic intracranial hypertension. PLoS One 2012; 7:e35221. 
  5. Morris PP, Black DF, Port J, Campeau N. Transverse sinus stenosis is the most sensitive MR imaging correlate of idiopathic intracranial hypertension. Am J Neuroradiol 2017; 38:471-477. 
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