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Orbital pseudotumor

• Overview
• Symptoms
• Treatment

Definition:

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

Alternative Names:

Idiopathic orbital inflammatory syndrome (IOIS)

Causes, incidence, and risk factors:

The cause is unknown. It most commonly affects young women, although it can still occur at any age.

• Review Date: 9/1/2006
• Reviewed By: Manju Subramanian, MD, Assistant Professor in Ophthalmology, Vitreoretinal Disease and Surgery, Boston University Eye Associates, Boston, MA. Review provided by VeriMed Healthcare Network.

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