Alternative Names
Idiopathic orbital inflammatory syndrome (IOIS)
Definition of Orbital pseudotumor:
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.
Causes, incidence, and risk factors:
The cause is unknown. It most commonly affects young women, although it can still occur at any age.
