Orbital pseudotumor

Idiopathic orbital inflammatory syndrome (IOIS)

Orbital pseudotumor is the swelling of tissue behind the eye in an area called the orbit. The orbit is the hollow space in the skull where the eye sits. The orbit protects the eyeball and the muscles and tissue that surround it. Orbital pseudotumor does not spread to other tissues or places in the body.

Skull anatomy

The skull is anterior to the spinal column and is the bony structure that encases the brain. Its purpose is to protect the brain and allow attachments for the facial muscles. The two regions of the skull are the cranial and facial region. The cranial portion is the part of the skull that directly houses the brain and the facial portion includes the rest of the bones of the skull.

Causes

Symptoms

Exams and Tests

Treatment

Outlook (Prognosis)

Possible Complications

When to Contact a Medical Professional