Idiopathic Intracranial Hypertension

Question 1

What condition is responsible when there is a presentation similar to a space-occupying lesion but no lesion is found?

Answer 1

Idiopathic intracranial hypertension

Question 2

What is this a presentation of?
Obese female, 30s, headache worse on lying/straining/coughing, papilloedema, bilateral tinnitus, CN VI palsy, blurred vision, loss of colour vision.

Answer 2

Idiopathic intracranial hypertension (cannot be diagnosed without papilloedema)

Question 3

What conditions and medication is idiopathic intracranial hypertension associated with?

Answer 3

Endocrine, SLE, CKD, IDA, oral COCP.

Question 4

How is suspected idiopathic intracranial hypertension investigated?

Answer 4

Normal CT scan

Question 5

What is the management for idiopathic intracranial hypertension?

Answer 5

Acutely reduce the pressure with an LP (not if focal neurology), weight loss, acetazolamide or topiramate to aid weight loss.