is a form of cancer that is almost always caused by previous exposure
to asbestos. In this disease, malignant cells develop in the mesothelium,
a protective lining that covers most of the body's internal organs. Its
most common site is the pleura (outer lining of the lungs and chest cavity),
but it may also occur in the peritoneum (the lining of the abdominal cavity)
or the pericardium (a sac that surrounds the heart).
Most people who develop mesothelioma have worked on jobs where they inhaled
asbestos particles, or have been exposed to asbestos dust and fibre in
other ways, such as by washing the clothes of a family member who worked
with asbestos, or by home renovation using asbestos cement products. There
is no association between mesothelioma and smoking.[.