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Orbital pseudotumor



Skull anatomy
Skull anatomy


Orbital pseudotumor

Definition:

The orbit is the bony pyramid-shaped cavity of the skull that contains and protects the eyeball and associated structures. Orbital pseudotumor is a swelling of the orbital tissues behind the eye, but unlike cancerous tumors, it cannot invade tissues or spread elsewhere.


Alternative Names:
Idiopathic orbital inflamatory syndrome (IOIS)
Causes, incidence, and risk factors:

The cause is unknown. No risk factors are known.




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