Pseudotumor Cerebri (Benign Intracranial HTN)


Pathophysiology

  1. Elevated CSF pressure w/out mass lesion or obvious obstruction
  2. Impaired CSF absorption by arachnoid villi

Diagnosis

Treatment

  1. Weight reduction
  2. Repeated LPs to decr CSF pressure
  3. Diuretic such as Acetazolamide if needed
  4. Rarely, lamboperitoneal shunt if risk of vision loss
  5. Optic nerve sheath fenestration to prevent vision loss

Disposition

  1. Usually outpt mgmt unless severe pain, focal findings, vision changes