Mesothelioma is that cancer of the lungs that you can get from asbestos exposure over some years of working around the stuff. Malignant is never good when said in any context. my best advice to you is to visit the the web and find out more or you could actually ask a doctor maybe even your doctor where you could get more information of the right kind not the wrong kind of information from non professionals.
A very rare form of cancer linked to asbestos exposure that occurs in the sac lining of the chest (pleural mesothelioma) or abdomen (peritoneal mesothelioma), or the lining of the heart (pericardial mesothelioma).
Hope that helps I gave you several links to information as well.
What is Malignant Mesothelioma?
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