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IIH mechanisms clarified
To clarify whether total intracranial CSF volume increases in IIH, researchers prospectively studied
MRI-derived measures of total cranial, ventricular, and extraventricular CSF volumes in patients with IIH and
controls. Results showed that the extraventricular CSF space was significantly greater in the patient group versus
the controls. The ventricular volume was the same between the two groups.