Symptoms and Causes of Mesothelioma
Mesothelioma is a rare cancer that forms in the thin layer of tissue covering most of the body's internal organs, known as the mesothelium. The disease most often develops in the lining of the lungs (pleural mesothelioma) or the lining of the abdomen (peritoneal mesothelioma). Understanding the symptoms and causes of this illness can help residents recognize warning signs and make informed decisions about their health.
What Causes Mesothelioma
Exposure to asbestos is the primary cause of mesothelioma. Asbestos is a group of naturally occurring mineral fibers that were widely used in construction, manufacturing, and industrial settings for much of the 20th century because of their resistance to heat, fire, and chemicals. When asbestos-containing materials are disturbed, tiny fibers can be released into the air. If inhaled or swallowed, these fibers can become lodged in the lining of the lungs or abdomen. Over time, the fibers cause irritation and scarring that can lead to cellular changes and, eventually, cancer.
Most people diagnosed with mesothelioma were exposed to asbestos at work. Occupations with higher risk include construction workers, electricians, plumbers, shipyard workers, auto mechanics, and workers in manufacturing plants. In Missouri, asbestos was historically used in a range of industries, including power plants, factories, railroads, and lead mining operations. Workers in these settings may have handled asbestos-containing insulation, pipe covering, brake linings, and building materials.
Exposure can also occur indirectly. Family members of workers sometimes developed mesothelioma after being exposed to asbestos fibers carried home on clothing, hair, or tools. Additionally, people who lived near industrial sites or mines may have been exposed through environmental contamination. In some cases, exposure happened during home renovation projects when older insulation, flooring, or ceiling tiles were disturbed without proper safety precautions.
It is important to note that mesothelioma has a very long latency period. The disease typically does not appear until 20 to 50 years after the initial exposure. This means that a person exposed to asbestos in the 1970s or 1980s may only now be experiencing symptoms.
Symptoms of Mesothelioma
Symptoms vary depending on where the cancer develops. Because the disease progresses slowly and early signs are often mild, they can be mistaken for more common conditions such as pneumonia, bronchitis, or the flu.
For pleural mesothelioma, which affects the lining of the lungs, common symptoms include:
- Shortness of breath or difficulty breathing
- Persistent dry cough or wheezing
- Chest pain or tightness
- Fluid buildup around the lungs, known as pleural effusion
- Unexplained weight loss
- Fatigue or weakness
For peritoneal mesothelioma, which affects the lining of the abdomen, symptoms may include:
- Abdominal pain or swelling
- Nausea or vomiting
- Changes in bowel habits
- Loss of appetite and unexplained weight loss
- A noticeable lump or mass in the abdomen
Less common forms of mesothelioma can affect the tissue around the heart or the lining of the testicles, each with its own set of symptoms.
What Missouri Residents Should Know
Missouri has a long industrial history, and asbestos exposure has occurred in many parts of the state. Older homes, schools, and commercial buildings constructed before the 1980s may still contain asbestos in insulation, ceiling tiles, floor coverings, and pipe wrap. Homeowners planning renovations or demolitions should have materials tested by a certified professional before disturbing them.
Anyone who worked in Missouri's manufacturing, mining, construction, or utility industries — or who lived with someone who did — and is now experiencing persistent respiratory or abdominal symptoms should discuss their history with a healthcare provider. Early evaluation can help identify the cause of symptoms and guide next steps. While mesothelioma is a serious disease, a thorough medical assessment is the first step toward understanding one's condition and available care options.
This page is for general informational purposes only and is not legal or medical advice. Reading it does not create an attorney-client relationship. Consult a licensed attorney or physician about your specific situation.
