Mesothelioma and Asbestos

Asbestos is a mineral that occurs naturally in the form of thin, long fibers. People who are exposed to asbestos may develop lung diseases, such as mesothelioma.

The symptoms of these diseases may not show up for decades after exposure to asbestos. Different asbestos types may cause different symptoms.

Pleural Mesothelioma

Pleural mesothelioma is a type of cancer that develops in the lung's outer liner (pleura). It is the most prevalent form of mesothelioma and is responsible for 70 to 79% of all diagnosed cases. This condition causes chest pain, breath shortness and a feeling of heavyness.

Exposure to asbestos, a class of minerals comprised of microscopic fibers causes this type of cancer. These fibers, when inhaled cause irritation and DNA mutations. The pleura covers the lungs and chest cavity This means that these irritations can affect both the lungs and the heart of a person. Mesothelioma symptoms typically don't show until 30 to 50 years after exposure.

The most commonly reported symptoms of pleural mesothelioma are chest pain and breath shortness. Patients may also suffer from chest tightness and coughing, or breathing difficulties. Patients with this type of cancer typically have previous exposure to asbestos in the workplace. The most common jobs that put people at risk of pleural mesothelioma include manufacturing, construction, and shipbuilding. People who served in the military are at a greater risk due to the frequent use of asbestos in Navy vessels and bunkers for the Army.

The most common staging method for pleural mesothelioma is the TNM (tumor lymph nodes, lymph nodes, and metastases) staging system. The stage that the patient is in at the time of diagnosis can help determine what treatment plan they should follow. For instance, patients suffering from mesothelioma that is pleural in stage three or four have a poorer prognosis than patients with a lower stage. Stage four mesothelioma can develop into the liver, heart or diaphragm. This makes it more difficult to treat and increases the risk of complications for patients.

Peritoneal Mesothelioma

Unlike pleural cancer, which forms in the lining of the lung, peritoneal cancer develops in a membrane that covers the abdominal cavity, including organs such as the liver and intestines. As with pleural mesothelioma asbestos lawsuit exposure is the cause of peritoneal mesothelioma. It is estimated that only 300-500 cases are diagnosed annually, which is less than the pleural asbestosis.

As with pleural mesothelioma symptoms can take years to show. Most patients are afflicted with abdominal pain as well as a mass in the abdomen. The symptoms of this kind of mesothelioma could also include nausea as well as weight loss and fever. Many of these symptoms could be mistaken for gastrointestinal problems which can lead to a mistaken diagnosis.

Typically, doctors can identify mesothelioma through a thorough health history and physical examination. Imaging tests such as X-rays or CT scans can be used to identify mesothelioma. These tests can identify tumors and other cancer signs that aren't evident on X-rays.

These tests enable doctors to identify mesothelioma, and determine the stage. They also offer treatment options. The stage is determined by the kind of cell and if the tumor has spread.

The most important risk factor for mesothelioma is exposure to asbestos. People who have worked in jobs which require asbestos, like plumbing manufacturing, electrical work, or construction, are at a higher risk of developing the disease. Even if they do not work in these areas they may be exposed to asbestos through family members or through other sources. Anyone who suspects that they're at risk should talk to a doctor. A mesothelioma specialist can assist those who have had a previous history of asbestos to find out more about their risk.

Risk Factors

Asbestos is the most significant mesothelioma-related risk factor. It accounts for up to the 80% of cases. Exposure to asbestos can occur due to military service, work, or living with those who worked with asbestos lawyer. When exposed to asbestos, particles are able to be inhaled into lungs and abdomen. These particles can cause irritation to the linings and can cause cancerous cells to develop in the mesothelium. Mesothelioma can take anywhere between 15 and 60 years to develop following exposure to asbestos.

Other risk factors include smoking, genetics, and age. People in their 40s or 50s are more at risk of developing mesothelioma as compared to those who are younger or older. It takes mesothelioma 20-60 years to manifest cancer symptoms after the first exposure. It is important to keep in mind, too, that mesothelioma can occur in people who have been exposed to asbestos, but without having been directly exposed to it. This is called indirect or secondary exposure to asbestos. It could be as hazardous as direct exposure.

Smoking increases the risk of getting mesothelioma because it causes mesothelium damage and makes it more prone to asbestos. Mesothelioma can also be aggravated by certain illnesses such as asbestosis and pneumonia. Men are more likely to develop mesothelioma than women. This is because men are more likely to be exposed to asbestos and endure a a longer period of exposure than women. Men are also more likely to have lived with someone who worked with asbestos compensation and to have asbestos fibers on their clothing. Women tend to have less contact with asbestos and do not typically carry asbestos case home on their clothing.

Diagnosis

It is difficult to diagnose mesothelioma due to its symptoms being often similar to other diseases. This is why patients are sometimes misdiagnosed.

NYU Langone doctors will perform a physical examination and record the patient's medical history including asbestos exposure. Doctors can also order a chest X-ray or CT scan to look for lumps and other abnormalities as well as evidence of asbestos exposure in the past like plaques in the pleura (thickened pleura with calcium deposits) and the buildup of fluid between the lung and chest wall (known as pleural effusion).

Other diagnostic tests include a magnetic resonance image, or MRI test, which makes use of radio waves and magnets in order to create a series detailed images of the insides of the body. A surgical biopsy is a different method for doctors to identify mesothelioma. During a surgery biopsy doctors take a tiny piece of tissue from the pleura or the peritoneum to be examined further. A pathologist can then examine the tissue under a microscope to see if it has cancerous cells.

The type of mesothelial cells involved as well as the benign or malignant nature of those cells, as well as the location, type and stage of the cancer are used to classify the disease. Some types of mesothelioma have greater risk of metastasizing or spreading, so it's important to establish a clear diagnosis to ensure that the doctors can treat it before it gets out of control.

Doctors may also conduct tests in the laboratory on tumors in order to determine specific proteins, genes or other factors that can help them describe cancer characteristics and plan treatment. These results are known as staging.

Treatment

A diagnosis of mesothelioma can be an incredibly frightening prospect. It is important to remember, however, that cancer can be treated, particularly in its early stages. Many people with mesothelioma live for many years without the disease spreading to other organs of their body.

Exposure to asbestos can trigger mesothelioma in a number of ways. Asbestos fibres, too small to be felt or observed through the naked eye can be airborne, causing irritation to the lung's lining (pleura). In time the irritation causes the formation of scar tissues and eventually tumors.

The Pleura is a covering that surrounds the abdomen, heart, and lungs. Mesothelium is composed of cells that react to exposure to asbestos, causing it to inflame and form scar tissue. These changes can eventually result in malignant mesothelioma tumors.

The symptoms of pleural mesothelioma are shortness of breath and chest pain, or an accumulation of fluid on the lungs (pleural effusion). In rare cases the cancer may be spread to the tissues around the heart and reproductive organs.

A doctor may request biopsy if scans show the possibility of a tumor in the lungs or stomach. During the procedure, doctors remove small amounts of the fluid or tumor for laboratory testing. The results will confirm the diagnosis of mesothelioma, and also determine the best treatment option.

There are many types of treatment for mesothelioma, including chemotherapy and surgery. Most doctors use a combination of these treatments. Participating in clinical trials of mesothelioma treatments may be beneficial to patients. To learn more, patients should speak to mesothelioma specialists who have had experience treating the disease.