Risk factors for mesothelioma
Key risk factor is contact with asbestos fibers . There are two basic types of asbestos fibers. The first type is chrysotile . It is a soft helical thread that often attaches the upper airway. On the other hand, hornblende , which are solid asbestos needles that reach the alveoli or to the pleura. This type of fiber is much more dangerous and causes the majority of mesothelioma. Research has found that mesothelioma became ill and family members of workers who came into contact with asbestos such as when washing work clothes.
Reason tumor formation is as follows. Inhaled asbestos fiber reaches the alveoli, there it shall devour the macrophage (cells of the immune system that removes foreign particles). He, however, it is not able to destroy and over time the thread gets out of the cell and "pierced" the pleura and gets into the thoracic cavity where further harmful and irritating. The gradual development of chronic inflammation irritation on the basis of which may arise tumor growth.
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