There are several reasons DNA damage can occur including environmental, genetics, or mistakes that happen during reproduction of normal cells. This reproductive damage can be caused by something obvious like smoking or exposure to asbestos, but sometimes there is no clear causation. In most cases these cancer cells eventually form a tumor. Through the process of metastasis, cancer cells spread throughout the body via the lymph vessels or bloodstream; from which they are able to grow and form new tumors in organs and systems other than the point of origin.
Despite the ability to spread cancer is always named for its point of origin. This is why even though mesothelioma can affect the lungs, heart, abdomen, and then spread to other regions it is named for the tissues the asbestos embeds in. Not all cancers act the same as far as growth, and response to treatment. A proper diagnosis is pertinent to deciding the correct treatments and medical procedures that is aimed at the patient’s particular type of cancer.
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