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IIH — RACP Paediatrics MCQ

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ModerateNeurology & DevelopmentIIHRACP Paediatrics

A 14-year-old presents with severe headache, vomiting, and papilloedema. He has a 6th nerve palsy. CT brain is normal. LP shows opening pressure of 35 cmH2O with normal CSF composition. He is obese. What is the diagnosis?

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Correct answer: A — Idiopathic intracranial hypertension

IIH (pseudotumour cerebri) presents with headaches, papilloedema, and visual disturbances with elevated CSF opening pressure (>28 cmH2O in children) and normal CSF composition. Risk factors include obesity and tetracycline use. Treatment includes weight loss, acetazolamide, and in refractory cases, CSF diversion.

Reference: RCH Melbourne – 2024 – Clinical Practice Guidelines: Idiopathic Intracranial Hypertension