Conclusion
CyberKnife® radiosurgery represents a very powerful and precise radiation technique, for patients with primary or recurrent lung cancer, or for those with metastases to the lung from cancers that arise elsewhere in the body. The treatment is safe to administer to patients that are not healthy enough to withstand definitive surgery, and offers a new option to patients with recurrent disease, who may have previously had little if any additional effective treatment option available to them.