Lung canceris responsible for the most cancer-related deaths for both men and women throughout the world. The American Cancer Society estimated that 228,190 new cases of lung cancer in the U.S. were diagnosed and 159,480 deaths due to lung cancer occurred in 2013.
Lung cancer was not common before the 1930s, but increased dramatically over the following decades as tobaccosmoking increased. In many developing countries, the incidence of lungcancer is beginning to fall because of education about the dangers of cigarette smoking and effective smoking cessation programs. Nevertheless, lungcancer remains the most common form of cancer in men worldwide and the fifth most common form of cancer in women.
It’s cancer that starts in your lungs and can spread to other parts of your body. Although it’s the top cause of cancer deaths for U.S. men and women, it’s also one of the most preventable kinds, by not smoking and avoiding other people’s secondhand smoke.
The disease almost always starts in the spongy, pinkish gray walls of the lungs’ airways (called bronchi or bronchioles) or air sacs (called alveoli). There are more than 20 kinds. The two main types are non-small cell lung cancer and...