Mesothelioma

The mesothelium is a membrane that covers and protects most of the internal organs of the body. It is composed of two layers of cells: One layer immediately surrounds the organ; the other forms a sac around it. The mesothelium produces a lubricating fluid that is released between these layers, allowing moving organs (such as the beating heart and the expanding and contracting lungs) to glide easily against adjacent structures.

The mesothelium has different names, depending on its location in the body. The peritoneum is the mesothelial tissue that covers most of the organs in the abdominal cavity. The pleura is the membrane that surrounds the lungs and lines the wall of the chest cavity. The pericardium covers and protects the heart. The mesothelial tissue surrounding the male internal reproductive organs is called the tunica vaginalis testis. The tunica serosa uteri covers the internal reproductive organs in women.

The first lawsuits against asbestos manufacturers were in 1929. Since then, many lawsuits have been filed against asbestos manufacturers and employers, for neglecting to implement safety measures after the links between asbestos, asbestosis, and mesothelioma became known (some reports seem to place this as early as 1898). Today, you may see a commercial stating something like, “Mesothelioma is a rare type of cancer caused by asbestos particles. Asbestos particles can be found in lumberyards, shipyards or any of the heating or automotive industries.”
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Mesothelioma, though rare, has had a number of notable patients. Hamilton Jordan, Chief of Staff for President Jimmy Carter and life long cancer activist, died in 2008. Australian anti-racism activist Bob Bellear died in 2005. British science fiction writer Michael G. Coney, responsible for nearly 100 works also died in 2005. American film and television actor Paul Gleason, perhaps best known for his portrayal of Principal Richard Vernon in the 1985 film The Breakfast Club, died in 2006. Mickie Most, an English record producer, died of mesothelioma in 2003. Paul Rudolph, an American architect known for his cubist building designs, died in 1997.
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Symptoms of mesothelioma may not appear until 20 to 50 years after exposure to asbestos. Shortness of breath, cough, and pain in the chest due to an accumulation of fluid in the pleural space are often symptoms of pleural mesothelioma.

Symptoms of peritoneal mesothelioma include weight loss and cachexia, abdominal swelling and pain due to ascites (a buildup of fluid in the abdominal cavity). Other symptoms of peritoneal mesothelioma may include bowel obstruction, blood clotting abnormalities, anemia, and fever. 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.

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Though once considered a rare disease, today mesothelioma is more recognizable to the average person. And, as more victims are uncovered, the familiarity with this disease is growing. Often called asbestos cancer, mesotheliome is an uncommon form of cancer caused by the inhalation and/or ingestion of asbestos.

There are three main types of mesothelioma. Even though the signs and symptoms can be similar, pleural mesotheliome, peritoneal mesotheliome, and pericardial mesotheliome attack different parts of the body. Pleural mesotheliome is the most commonly diagnosed of the three, and occurs when asbestos fibers are inhaled and take up residence in the tissue that surrounds the lungs. Peritoneal mesthelioma occurs when the asbestos fibers make their way and become attached to the tissue that surrounds the abdomen. And, when the asbestos fibers begin to build up around the tissue that surrounds the heart, the diagnosis is pericardial mesotheliome.

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