Watch lung cancer survivor and Philadelphia CyberKnife patient, Kenneth Lenton, talk about his experience receiving CyberKnife treatment for lung cancer. After having gone through chemotherapy and surgery for stage III cancer in his left lung, Ken opted for CyberKnife treatment when the cancer returned five years later to his right lung. Ken said the difference between CyberKnife and his previous treatments was unbelievable. CyberKnife was only five treatments versus numerous trips for hours of chemo, and Ken said the CyberKnife treatment was easy and painless. He also said that the staff at Philadelphia CyberKnife was awesome and they made him very comfortable and at ease.