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Rarely, tumors, either cancerous (malignant) or noncancerous (benign), occur in the tissues behind the eye. Tumors can form within these tissues, or cancerous tumors from elsewhere in the body can spread (metastasize) to these tissues.
These tumors can push the eye forward (a condition called proptosis or exophthalmos). Pain, double vision, and vision loss may also occur. Computed tomography (CT), magnetic resonance imaging (MRI), or both are done to obtain an image of the tumor and exclude other abnormalities. Usually a sample taken for examination under a microscope (biopsy) is needed to determine what type of tumor is present, and treatment depends on these results. Treatment may include surgical removal, radiation therapy, chemotherapy, or a combination of these treatments.
Last full review/revision September 2008 by James Garrity, MD
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