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Skull anatomy
Skull anatomy
OverviewSymptomsTreatmentPrevention

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.



Review Date: 11/5/2002
Reviewed By: Raymond S. Douglas M.D., Ph.D. Department of Ophthalmology, UCLA Medical Center, Los Angeles, CA. Review provided by VeriMed Healthcare Network.

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