30. Imaging of the orbit and the paranasal sinuses. Imaging methods, indications and strategy.

• Nasopharyngeal angiofibroma
  • T2 MRi
    • Black dots on MRi are vessels
  • Treatment
    • Embolization of supplying vessels
• Midline fractures
  • Le fort I – III
  • Blow-out fractures (of the orbit)
• Spaces of the eye
  • Ocular space
    • Anterior chamber of the eye
    • Posterior chamber of the eye
  • Intraoconal space
    • The ocular muscles of the eye form a cone
    • Optic meningioma can be found here
  • Conal space
    • The conal space is formed by the ocular muscles and an envelope of fascia
    • Endocrine ophthalmopathy can be found here
  • Extraconal space
    • Abscess spread from the sinuses can be found here