Mesothelioma is one of the most uncommon forms of cancer. It generally affects the lungs, heart or abdominal organs. The most common form of this disease is pleural mesothelioma. The pleuron is a slight membrane between the chest cavity and the lungs. The lubrication it gives does not allow the lungs to get grazed when they come in contact with the chest wall. Pleural mesothelioma is also known as ""lung"" cancer. Peritoneal mesothelioma is another form of mesothelioma. The membrane that envelops the abdomen’s organs is known as the peritoneum. While it is less common than pleural mesothelioma, peritoneal mesothelioma is more invasive and consequently more fatal for the patient.

Mesotheliomas are either easily curable or malignant. The most widespread form of mesothelioma is the “diffuse malignant pleural mesothelioma”. This tumor is invasive and destructive. It characteristically spreads quickly to the lungs’ surface, heart or abdominal organs. Life expectancy for patients afflicted by this cancer usually ranges between four months to two years. Of course, that depends a lot on myriad factors, like the stage of the disease’s detection, the patient’s health etc. With appropriate care, some patients have survived for a number of years.

Early diagnosis and surgery may elongate life expectancy. Surgery may not be a feasible option, however, for older or weaker patients. Radiation treatment and chemotherapy can help in the overall program. Home care and pain management are other alternatives during the later stages of the malignancy.

Automobile mechanics, painters, plasterers, pipe fitters, plumbers, shipyard workers and welders, to name a few, are in regular contact with asbestos and thus in greater danger of getting the disease than individuals of other professions.

Generally, it is believed that sustained exposure to asbestos is more liable to give one mesothelioma. However, some individuals with short but severe exposures have developed this malignancy. Also, a person can get this disease indirectly. Women, while washing the clothes of men (son, husband) who work with asbestos, can develop the cancer.