Idiopathic intracranial hypertension (or Pseudotumor Cerebri)

Our brain and spinal cord normally sit in a bath of cerebrospinal fluid (CSF). Due to abnormalities in the flow of CSF, the pressure of CSF can build up (intracranial hypertension) to levels that are unsafe, causing headaches, pulsatile tinnitus, and possibly vision loss. In some patients with idiopathic intracranial hypertension, venous sinus stenosis (narrowing) is also present inside the skull and opening the stenosis with a stent can lead to improvement in symptoms.