Patients in the early stages of pleural mesothelioma do not exhibit many symptoms. Those that do show are not specific to the disease. Mesothelioma symptoms common in the early stages are:

These are similar to symptoms of various other disorders, such as pneumonia, common cold, asthma, influenza, and Chronic Obstructive Pulmonary Disease (COPD). Pleural effusions and inflammation in the lining of the lungs are the main source of discomfort associated with mesothelioma, but are also linked to pneumonia and COPD.

Up to 25 percent of patients have symptoms like dyspnea and chest pain for approximately 6 months before seeing a doctor.

Pleural thickening is another result of pleural mesothelioma that is common in other diseases. This is caused by the scarring of the pleura. It causes a loss of elasticity in the lungs, which is essential for the lung to expand for normal breathing.

Pleural thickening can also be caused by tuberculosis, pleurisy, and empyema (infection in the lung that causes a buildup of pus in the pleura). However, in mesothelioma, this is specifically caused by scarring of the pleura due to asbestos.

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Mesothelioma Symptoms - Critical Signs to Watch For