• What Is Mesothelioma 

    Mesothelioma is a type of cancer that develops from the thin layer of tissue that covers many of the internal organs (known as the mesothelium). The most common area affected is the lining of the lungs and chest wall. Less commonly the lining of the abdomen and rarely the sac surrounding the heart, or the sac surrounding the testis may be affected. Signs and symptoms of mesothelioma may include shortness of breath due to fluid around the lung, a swollen abdomen, chest wall pain, cough, feeling tired, and weight loss. These symptoms typically come on slowly.

    • Pleural mesothelioma
    • Peritoneal mesothelioma
    • Pericardial mesothelioma
    • End stage mesothelioma
  • Pleural Mesothelioma

    Symptoms or signs of mesothelioma may not appear until 20 to 50 years (or more) after exposure to asbestos. Shortness of breath, cough, and pain in the chest due to an accumulation of fluid in the pleural space (pleural effusion) are often symptoms of pleural mesothelioma.

    Mesothelioma that affects the pleura can cause these signs and symptoms:

    • Chest wall pain
    • Pleural effusion, or fluid surrounding the lung
    • Shortness of breath
    • Fatigue or anemia
    • Wheezing, hoarseness, or a cough
    • Blood in the sputum (fluid) coughed up (hemoptysis)


    In severe cases, the person may have many tumor masses. The individual may develop a pneumothorax, or collapse of the lung. The disease may metastasize, or spread to other parts of the body.

  • Peritoneal Mesothelioma

    The most common symptoms ofperitonealmesothelioma are abdominal swelling and pain due to ascites (a buildup of fluid in the abdominal cavity). Other features may include weight loss, fever, night sweats, poor appetite, vomiting, constipation, and umbilical hernia. If the cancer has spread beyond the mesothelium to other parts of the body, symptoms may include pain, trouble swallowing, or swelling of the neck or face. These symptoms may be caused by mesothelioma or by other, less serious conditions.

    Tumors that affect the abdominal cavity often do not cause symptoms until they are at a late stage. Symptoms include:

    • Abdominal pain
    • Ascites, or an abnormal buildup of fluid in the abdomen
    • A mass in the abdomen
    • Problems with bowel function
    • Weight loss
  • Pericardial Mesothelioma

    Pericardial mesothelioma is not well characterized, but observed cases have included cardiac symptoms, specifically constrictive pericarditisheart failurepulmonary embolism, and cardiac tamponade. They have also included nonspecific symptoms, including substernal chest pain, orthopnea (shortness of breath when lying flat), and cough. These symptoms are caused by the tumor encasing or infiltrating the heart.

  • End stage Mesothelioma

    In severe cases of the disease, the following signs and symptoms may be present:

    • Blood clots in the veins, which may cause thrombophlebitis
    • Disseminated intravascular coagulation, a disorder causing severe bleeding in many body organs
    • Jaundice, or yellowing of the eyes and skin
    • Low blood sugar level
    • Pleural effusion
    • Pulmonary emboli, or blood clots in the arteries of the lungs
    • Severe ascites

    If a mesothelioma forms metastases, these most commonly involve the liver, adrenal gland, kidney, or other lung.

Factors that increase the risk of mesothelioma from asbestos exposure include:

Working at an asbestos mine or asbestos processing plant


Living in a residential area near an asbestos mine

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Working in a high-risk occupational setting, such as the construction or automotive industries

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Disturbing asbestos products during a home renovation without proper safety measures

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Serving on military ships or facilities built with products containing asbestos

Mesothelioma In The Headlines

The best way to prevent mesothelioma is to take a proactive stance on your health. If you think a past job or home repair project exposed you to asbestos, you should seek regular medical exams to check for signs of related diseases.