Stereotactic radiosurgery requires the placement of a stereotactic head frame, which is a ring attached to the head with 4 small pins. The frame placement is done with local anesthetic (numbing medicine) by the neurosurgeon on the day of the procedure and will remain in place until the end of the stereotactic radiosurgery later in the day. The stereotactic frame will help the doctor to target the radiotherapy to the area of the surgery that was found by an MRI scan. The surgical area and up to 2 other lesions will be treated.