II. Causes: Venous drainage obstruction

  1. Cerebral Venous Sinus Thrombosis (Sagittal, Lateral)
    1. Aseptic (Hypercoagulable state)
    2. Septic (Otitis Media, Mastoiditis)
  2. Bilateral radical neck dissection (Jugular Vein cut)
  3. Superior Vena Cava Syndrome
  4. Increased Right Heart Pressure (Cor Pulmonale)

V. Causes: Medications related to Increased Intracranial Pressure

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