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How does lung cancer start?

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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 small-cell lung cancer. At first, you may not have any symptoms.

SOURCES: 

National Cancer Institute. 

National Institutes of Health. 

WebMD Medical Reference from the American College of Physicians: “Section 12 VIII Lung Cancer.”

Reviewed by Laura J. Martin on July 11, 2018

SOURCES: 

National Cancer Institute. 

National Institutes of Health. 

WebMD Medical Reference from the American College of Physicians: “Section 12 VIII Lung Cancer.”

Reviewed by Laura J. Martin on July 11, 2018

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What is the most common kind of non-small cell lung cancer?

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