This website was made to inform you about lung cancer. Lung cancer is lung cells that  grow out of control. According to Vicky Estrera “Lung cancer is caused by carcinogens such as smoke and radon gas. According to Ralph Zinner “carcinogens mutate the DNA to tell cells to start multiplying rapidly”. When cells multiply the clump together and form a tumor.When the tumor gets its own blood supply its called angiogenisis.