Lung cancer symptoms may not show up right away, and when they do, the cancer has advanced.  If you are eligible, screening for lung cancer with annual low-dose CT scans can reduce the lung cancer death rate by up to 20%  by detecting tumors at early stages when they are more likely to be curable.  Radiation Oncologist Dr. Perez-Tamayo discusses in depth this screening option, the difference between what smoking and vaping does to your lungs, treatment options and more in the latest edition of Cancer Explained with Central Care Cancer Center.