The choice of treatment depends on the type of lung cancer and the degree to which it has spread.  People with lung cancer can have surgery where the entire lung, a lobe of the lung or a small part of the lung are removed along with nearby lymph nodes; radiation therapy (also called radiotherapy) which uses high-energy rays to kill cancer cells in the area being treated; chemotherapy which depends on drugs that kill cancer by entering the bloodstream; and targeted therapy which uses specialized drugs to block the growth and spread of cancer cells.