Cyberknife is a non-invasive treatment option that delivers high doses of radiation to precisely designated tumors located in the body. It is a fully robotic radiation therapy treatment machine that has a flexible robotic arm that helps administer radiation. This flexible arm is important because it helps treat parts of the body that would not be accessible via conventional radiation therapy. Many types of cancer can be treated with Cyberknife including but not limited to lung, brain, spine, and head and neck. Cyberknife treatments can last anywhere from 30-90 minutes. The number of treatments vary but a typical course of Cyberknife treatment can last from 1-5 days.