An orbital tumor is any tumor that occurs within the eye socket (orbit of the eye) within the brain. The orbit contains the eyeball, its muscles, blood supply, nerve supply, and fat. Brain tumors that develop in any of the tissues surrounding the eyeball are referred to as orbital tumors. Orbital tumors may also invade the orbit from the sinuses, brain, or nasal cavity. Such brain tumors may metastasize (spread) from other areas of the body. Orbital tumors can affect adults and children and most are benign. The most common orbital tumors in adults are also blood vessel tumors, including hemangioma, lymphangioma, and arteriovenous malformation. Brain tumors of the nerves, fat, and surrounding sinuses occur less often.
SYMPTOMS
The most common symptoms of orbital tumors include protrusion of the eyeball, visual loss, double vision or pain. Patients may also have more than of these signs or symptoms.
DIAGNOSIS
As always, the first steps in diagnosis are a careful history and physical examination. CT and MRI scans performed without and with intravenous contrast enhancement are frequently used together to define these tumors.
TREATMENT
Treatment of orbital tumors varies depending on the size, location, and type. There are minimally invasive approaches for certain skull-base tumors. Others might involve quite radical surgery. Frequently, the neurosurgeon will work as a team with a neuro-ophthalmologist. Further treatment can include radiation therapy and or stereotactic radiosurgery.