MBBS Study

What is proptosis? Five important causes of proptosis.

Proptosis:

Abnormal protrusion of the eyeball beyond the orbital margin is called Proptosis.

Forward protrusion of the eyeball beyond the orbital margin.

5 important causes of Proptosis:

For easy memorizing: CHRONiC

  1. Cavernous sinus thrombosis
  2. Haemangioma
  3. Retro-bulbar hemorrhage
  4. Orbital cellulitis
  5. Neurofibroma
  6. Cysticercosis

[Others:

Panophthalmitis, Pseudo-tumour, Osteoma, Lymphosarcoma, rhabdomyosarcoma, meningioma, Orbital varices, Aneurysm of the blood vessels, Hydatid cyst, Leukaemic deposit, Cranio-sinostosis, colobomatous cyst, Cavernous sinus thrombosis, Xanthomatosis of orbit, neuroblastoma.]

[N:B: Bilateral Proptosis is called exophthalmos]

[Ref: Basak 4th/358-359]

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