Idiopathic intracranial hypertension

Case contributed by Dr Maxime St-Amant



Patient Data

Age: 45 years
Gender: Female



MRI shows bilateral enlargement of CSF space around the optic nerves (T2) and mild enhancement of the optic nerves, compatible with pseudotumor cerebri (idiopathic intracranial hypertension).

Other findings which may be seen (although not in this case), include:

In an atypical case, venous thrombosis must be excluded.

Case Discussion

Idiopathic intracranial hypertension (IIH),  also historically known as pseudotumor cerebri, is a syndrome with signs and symptoms of increased intracranial pressure but where a causative mass or hydrocephalus is not identified.

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