Intracranial hypertension

Intracranial hypertension is a condition of increased pressure in the brain.

Idiopathic intracranial hypertension
When the cause of increased pressure is unknown it is called Idiopathic Intracranial Hypertension (IIH). It was previously known as pseudotumor cerebri as the symptoms can mimic that of a brain tumor, even though no tumor is present. It is considered to be a rare disease, affecting just 1 in 100,000.

ME/CFS
Research on intracranial hypertension in Myalgic Encephalomyelitis or Chronic Fatigue Syndrome is limited.