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Lung Cancer

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Lung Cancer
Lung cancer is the 2nd most common cancer in both men and women in the United States.

Symptoms

Treatment

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LUNG CANCER is one of the most common cancers in the world. It is a leading cause of cancer death in men and women in the United States. Cigarette smoking causes most lung cancers. The more cigarettes you smoke per day and the earlier you started smoking, the greater your risk of lung cancer. High levels of pollution, radiation, and asbestos exposure may also increase risk.

Tumors in the lung can be benign (not cancer) or malignant (lung cancer). The malignant tumors are:

  • May be a threat to life
  • Can invade nearby organs and tissues
  • Can spread to other parts of the body
  • Often can be removed but may grow back

Lung cancer cells can spread by breaking away from a lung tumor. They can travel through blood vessels or lymph vessels to reach other parts of the body. After spreading, cancer cells may attach to other tissues and grow to form new tumors that may damage those tissues.