clinical features

Last reviewed 08/2023

The characteristic features of cavernous sinus thrombosis are:

  • fevers and rigors
  • pain in the eye and forehead - ophthalmic division of V
  • exophthalmos and occasionally, papilloedema
  • cranial nerve palsies - III, IV, VI
  • oedema of the periorbital structures and forehead due to blockage of venous drainage
  • symptoms are most usually unilateral, but can extend via the circular sinus to become bilateral