Where did Lung Cancer Originate
Lung cancer originate is the uncontrolled growth of abnormal
cells that start off in one or both lungs typically in the cells that line the
air passages. The abnormal cells do not expand into healthy lung tissue, they divide
rapidly and form tumors.
Malignant tumors, the extra dangerous ones, spread to other
parts of the body either from side to side the bloodstream or the lymphatic
system. Metastasis refers to cancer spreading beyond its site of origin to
other parts of the body. When cancer spreads it is much harder to treat
successfully.
Lung Cancer Mesothelioma
Main lung cancer originates in the lungs, while secondary
lung cancer starts somewhere else in the body, metastasizes, and reaches the
lungs. They are careful different types of cancers and are not treated in the
same way.
According to the National Cancer Institute, by the end of
2015 there will have been 221,200 new lung cancer diagnoses and 158,040 lung-cancer
related deaths in the USA.
According to the World Health Organization (WHO), 7.6
million deaths globally each year are caused by cancer; cancer represents 13%
of all global deaths. As seen below, lung cancer is by far the number one
cancer killer.
The American Cancer Society says that lung cancer makes up
14% of all newly diagnosed cancers in the USA today. It adds that annually,
more patients die from lung cancer alone than prostate, breast and colon
cancers combined (in the USA).
The majority lung cancer patients are over the age of 60
years when they are diagnosed. Lung cancer takes more than a few years to reach
a level where symptoms are felt and the sufferer decides to seek medical help.
How is lung cancer classified?
Doctors view a lung x-ray for signs of lung cancer
Lung cancer mesothelioma can be normally classified into two
main types based on the cancer's appearance under a microscope non small cell
lung cancer and small cell lung cancer
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