Lung Cancer

Lungs expand and contract up to 20 times a minute; to supply oxygen which is distributed to tissues all across the body and expel carbon dioxide throughout the body. They are also known as one of the hardest-working organs in the human body.

Lung cancer is one of the most common cancers in the world. And people who smoke are at the highest risk of contracting it. The more cigarettes you smoke per day and the earlier you started smoking, the greater your risk of lung cancer.

cancer in the lungs is common and people who smoke are at the highest risk of contracting lung cancer. The risk of lung cancer increases with the duration of the smoking period and the number of cigarettes smoked. The silver lining though is that if one quits this habit even after several years, one can significantly reduce the chances of developing lung cancer.

Risk Factors:

  • Smoking
  • Passive smoking
  • High levels of pollution
  • Radiation
  • Exposure to asbestos or radon gas
  • Family history
  • Genetic

Symptoms of Lung Cancer that occur In the advanced stage of the disease

  • A cough that doesn’t go away
  • Changes in a chronic cough or ‘smoker’s cough’
  • Coughing blood, even small amounts
  • Shortness of breath
  • Chest pain
  • Wheezing
  • Hoarseness
  • Unexpected weight loss
  • Bone pain
  • Headache

Having any of these symptoms does not mean it is cancer, but if one or more of them is noticed for more than two weeks, then a doctor must be seen and an immediate health screening is a must.

Risk factors include smoking, passive smoking, exposure to radon gas, asbestos, and a family history of lung cancer. People with an increased risk of lung cancer should take annual CT scans to look for the disease. Also, smokers of 55 years of age or older and even those who used to smoke earlier should check with their doctor about screening for lung cancer.

In Order To Diagnose Lung Cancer, The Doctor May Recommend:

  • Imaging tests: An X-ray image of your lungs may reveal an abnormal mass or nodule. A CT scan can reveal small lesions in your lungs that might not be detected in an X-ray.
  • Sputum cytology: Observing the sputum under the microscope can sometimes reveal the presence of lung cancer cells.
  • Tissue sample (biopsy): Lung cancer may be treated by surgery which would be either a Wedge resection, to remove a small section of the lung that contains the tumors along with a margin of healthy tissue Segmental resection: to remove a larger portion of the lung but not the entire lobe or Lobectomy, to remove the entire lobe of one lung or a Pneumonectomy to remove an entire lung.


  • Chemotherapy is often used to treat cancer cells that may remain after surgery.
  • Radiation therapy can be directed from outside the body (external beam radiation) or it can be put inside needles, seeds, or catheters and placed inside the body near to the tumors (Brachytherapy).
  • Targeted therapies are newer cancer treatments that work by targeting specific abnormalities in cancer cells. Targeted therapy options for treating lung cancer include Bevacizumab, Erlotinib, Crizotinib, and others.
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