Papilloedema

Usually bilateral disc swelling secondary to raised ICP

Causes

• Mass effect

  • Tumour
  • Haemorrhage
  • Oedema

• Increased CSF: choroidal plexus tumour

• Reduced CSF drainage

  • Blockage of the foreman of Munro or Sylvian aqueduct (congenital or mass)

  • Damage to arachnoid granulations: meningitis, SAH