Mitosis and lung cancer
About lung cancer
Lung cancer and smoking often, but not always, go hand in hand. As lung cancer stages advance, lung cancer symptoms, including coughing, wheezing, shortness of breath, and bloody mucus, usually become more severe. Treatment includes surgery, chemotherapy, and/or radiation or a combination of all three.
These are some symptoms for lung cancer
- Coughing, especially if it persists or becomes intense.
- Pain in the chest, shoulder, or back unrelated to pain from coughing.
- A change in color or volume of mucous (sputum).
- Shortness of breath.
- Changes in the voice or being hoarse.
- Harsh sounds with each breath.
At least 80% of lung cancer deaths are caused by smoking, and many others are caused by exposure to secondhand smoke. Smoking is clearly the strongest risk factor for lung cancer, but it often interacts with other factors. Smokers exposed to other known risk factors such as radon and asbestos are at even higher risk.
Lung cancer growth
Lung cancer is the uncontrolled growth of abnormal cells in one or both lungs. These abnormal cells do not carry out the functions of normal lung cells and do not develop into healthy lung tissue. As they grow, the abnormal cells can form tumors and interfere with the functioning of the lung, which provides oxygen to the body via the blood.
stages of lung cancer
- In stage I, the cancer is confined to the lung.
- In stages II and III, the cancer is confined to the lung and, possibly, the lymph nodes.
- Stage IV cancer has spread outside of the lung to other parts of the body.
Treatments for lung cancer
Surgery is not usually suitable because this type of cancer has normally spread at the time of diagnosis. You may also have radiotherapy. Non small cell lung cancer can be treated with surgery, chemotherapy, radiotherapy or a combination of these. It depends on the stage of the cancer.