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15 Things You Need to Know About Lung Cancer

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11. How is lung cancer diagnosed?

Lung cancer can be diagnosed in a variety of ways:

  • Image testing is where a doctor takes an X-ray of your lungs, which will show any abnormal growths.
  • If you have a cough that produces phlegm, your doctor may request a sputum cytology, which is an examination of the sputum. The sputum can sometimes contain lung cancer cells, which may be detected under a microscope.
  • Your doctor may also test for lung cancer by performing a biopsy, which is a small sample of an abnormal growth that’s examined under a microscope. This type of testing can reveal if the growth is cancerous, and if so, what kind of cancer it is.

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