Lung-cancer definitions

Lung cancer is the uncontrolled growth of cells in lung tissue. Of all cancer deaths in the world, lung cancer is the leader.
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The two types are small cell lung cancer and non-small lung cancer. Sometimes it consists of both kinds.
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Twenty percent of all the lung cancers are small cell, with the majority being non-small cell.
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If cancer started somewhere else and made its way to the lungs, it is called “metastatic cancer to the lung.”
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Carcinomas of the lung account for most lung cancers.
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Small cell lung carcinomas are usually treated with radiation and chemotherapy while non-small cell carcinomas are treated with surgery.
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The stages of lung cancer reflect where the cancer has spread. Non-small cell lung cancer:
  • Stage 1 - Cancer has not spread to the lymph nodes.
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Small cell lung cancer:
  • Limited - Cancer is in one lung and the lymph nodes nearby.
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By far, the most common cause of lung cancer is tobacco smoke. This smoke contains carcinogens that cause cancer and they immediately change the tissue in the lungs. After repeated exposure, the cells become badly damaged and cancer may occur. Causes for people who do not smoke include: hereditary factors, secondhand smoke, radon, asbestos, and air pollution. The risk factors for getting lung cancer include:
  • Smoking.
  • Secondhand smoke.
  • Exposure to radon gas.
  • Asbestos, or pollution.
  • Family history.
  • Drinking alcohol excessively.
  • Certain lung diseases.
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Cancer of the lung(s).
noun
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