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Idiopathic Intracranial Hypertension — RACP Paediatrics MCQ

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ModerateNeurology & DevelopmentIdiopathic Intracranial HypertensionRACP Paediatrics

An 8-year-old presents with severe headache, papilloedema, and sixth nerve palsy. CT brain is normal. LP opening pressure is 35 cmH2O. CSF composition is normal. BMI is on the 98th centile. What is the diagnosis?

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Correct answer: B — Idiopathic intracranial hypertension (pseudotumour cerebri)

Idiopathic intracranial hypertension: raised ICP with normal CT and CSF composition. Risk factors include obesity and certain medications (tetracyclines, vitamin A). Treatment includes acetazolamide and weight loss.

Reference: RCH Melbourne – 2024 – Clinical Practice Guidelines: Raised Intracranial Pressure