Asbestos: Cause
Of Deadly Mesothelioma Submitted By: Kirsten Hawkins A View of Mesothelioma
Asbestos is the commercial name given to certain types of fibrous
materials. They are silicates of varying compositions; the silica
combined with such bases as Magnesium, Iron, Calcium, sodium and Aluminum.
Asbestos fibers are usually from 20 to 500 in length and 0.5 to 50?
in diameter.
Asbestos bodies appear as golden brown or beaded rods with a translucent
center. The fibers are insoluble. The exposure of asbestos causes
fibers to be inhaled and fine dust deposited in the alveoli inside
the lungs consequently causing a type of cancer called Mesothelioma
(a deadly tumor) involving Mesothelial tissues or usually cells of
lungs or stomach and abdominal organs.Mesothelioma is a rare form
of cancer of the Pleura (lung cancer) and Peritoneum (abdomen cancer).
Mesothelioma has been shown to have a strong association with the
crocidolite variety of asbestos. Pleural mesothelioma, the most common
manifestation of asbestos exposure, is well-circumscribed plaques
of dense collagen, often containing calcium. Peritoneum Mesothelioma
may or may not contain asbestos bodies and rarely do they occur in
persons who have no history or evidence of asbestos exposure.
Mesothelioma not only occurs in people who are exposed the asbestos,
but also to them who had been living in vicinity to asbestos manufacturing
process or those staying in asbestos contaminated buildings. In Great
Britain, an association was reported between Mesothelioma and people
living within 1 kilometer of an asbestos factory.The risk of Mesothelioma
is reported to be high in those cases where occupational exposure
to asbestos is combined with cigarette smoking.
Mesothelioma usually does not appear until after 5 to 10 years of exposure.
Mesothelioma causes mechanical irritation and in the advanced cases,
there may be symptoms of clubbing of fingers, and cardiac distress.
The survival time of Mesothelioma patients is generally ranges from
12 months to 2 years of diagnosis and very few survive longer than 2
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