Metastatic Cancer to the Orbit: In females, the most common tumor to metastasis to the orbit is breast carcinoma followed by lung cancer. In males, lung cancer is the most common malignancy metastatic to the orbit followed by prostatic carcinoma. Presenting symptoms include pain, proptosis or enophthalmos, and early ophthalmoplegia. Often there is a history of previous surgery and/or chemotherapy for a primary malignancy. An infiltrative mass is seen on CT scans. Treatment is usually directed by an oncologist, however orbital irradiation may be used as a pallitable treatment. Back to Orbit