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Non-Small Cell Lung Cancer

In the United States, 80 to 85 percent of lung cancers are non-small cell lung cancers (NSCLC). NSCLC and small cell lung cancer (SCLC) differ in how the cells look under a microscope, their origin, how quickly they spread to other parts of the body, and how they are treated.

Small Cell Lung Cancer

Small cell lung cancer is a form of lung cancer that typically grows faster than non-small cell lung cancer and spreads to the lymph nodes and other organs more quickly. It is seen mostly in people who currently or formerly smoked (about 98 percent of cases are attributed to smoking).