Pleural mesothelioma impacts the lining of the chest cavity around the lungs. When both the inner and outer membrane layers (the mesothelium) thicken and retain fluid in the area between, pressure is put on the lungs and shortness of breath develops. Other symptoms include a persistent cough, chest pain, hoarseness and perhaps trouble swallowing. The more general symptoms for mesothelioma are fever, weight loss and fatigue, which explains why the initial appearance of mesothelioma symptoms are often misdiagnosed as pneumonia or some other common pulmonary problem.
Pleural mesothelioma is by far the most common form of the disease, accounting for about 75% of all cases. It is, however, a disease of the membranes surrounding the lungs. If the rogue cells are malignant and pass into the lungs, the lung cancer that results is secondary to mesothelioma. Nevertheless, lung cancer that develops as a result of mesothelioma is often referred to as asbestos lung cancer or mesothelioma lung cancer.
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