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Unit14: Physiological Disorders
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Unit14: Physiological disorders P1,P2,P3,M1,P4,M2,P5,M3,D2
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Unit 14
Lung Cancer;
(How Lung Cancer Develops, 2020)
One of the main factors of lung cancer is smoking, in cancer related deaths lung cancer
is ranked first. The chance of treating the disease increases when it is caught at an
early stage.(Lung cancer - Symptoms and causes, 2020)
Lung cancer is a very common cancer. It accounts for 12-16 percent of all cancers and
17-28 percent of cancer-related deaths. .(Lung cancer - Symptoms and causes, 2020)
Smoking causes the majority of lung cancers in both smokers and people exposed to
cigarette smoke. However, lung cancer also occurs in non-smokers and those who are
not exposed to cigarette smoke for a long time. In these cases, there may be no clear
cause of lung cancer.
The age of starting to smoke, the duration of smoking, the number of cigarettes smoked
affect the development of cancer. Passive smoking, in other words, exposure to
cigarette smoke in smoking environments also increases the risk of lung cancer. (Lung
cancer | Cancer Research UK, 2020) Genetic transmission and air pollution are other
blamed factors. Some lung diseases such as tuberculosis and radiotherapy to the lungs
increase the risk of lung cancer.
Usually, if a patient is told that the cancer has recurred (recurring), it could mean that
their primary cancer is returning. For example, for lung cancer, it is the recurrence of the
cancer in the same place in the lung after treatment, recurrence of the disease
expressed as relapse or recurrence. (Everything You Need to Know About Lung Cancer,
2020) If cancer develops in an area of the lung that was not affected before or in
another organ, these formations are called recurrent metastatic tumors.
This type of cancer is divided into two main groups as "small cell" and "non-small cell
lung cancer". Its growth, spread, and treatment differ depending on the type of disease.
Small cell lung cancer is the type that grows faster and spreads more to other parts of
the body and accounts for 20% of all lung cancers. The cause of this ailment is usually
smoking. Lung cancer often; It spreads to the bone, liver, brain and adrenal glands.
In rare cases, lung cancer can spread to the intestines, stomach, pancreas, and
kidneys.
Cancer can occur in a specific area of the body and then spread to other parts of the
body. This spread of cancer to other parts of the body is called metastasis; In this
case, the disease becomes metastatic cancer.
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