Your doctor has recommended a treatment called CyberKnife. It is used to treat tumors and other conditions throughout the body without having to make an incision (or opening in the skin). CyberKnife can also be used for people who cannot have surgery, or because they have other serious health issues.
CyberKnife uses a computer-controlled robotic arm that moves slowly around you. Beams of high dose radiation are aimed and delivered to the specific area that needs to be treated, while you lie on a special table. The beams are silent and invisible. They are painless; you will not be able to feel them as they pass through your body.