Mesothelioma Cancer What is Mesothelioma? Mesothelioma is a serious malignant tumor that affects the torso of the human body. There is a strong link between mesothelioma and contact with asbestos particles via breathing or swallowing.
Types of Mesothelioma Asbestos Cancer Epithelial mesothelioma is a rare and fatal form of cancer affecting the membrane lining of the chest cavity, heart, lungs, and abdominal cavity. There are three forms of epithelial mesothelioma: the most common is Pleural Mesothelioma, the second most common, Peritoneal Mesothelioma (accounting for only a quarter of the cases), and the rarest form, pericardial mesothelioma. Pleural mesothelioma, the most common type of this disease involves the pleura, a thin membrane located between the lungs and the chest cavity. The pleura provide a lubricated surface so that the lungs do not rub and chafe against the chest walls. There are two types of pleural mesothelioma the first being ?diffuse and malignant?. This type is cancerous and is generally fatal within a year of diagnosis. The second type is ?localized and benign? and is generally non-life threatening. It can usually be removed through surgery. Lung Lining cancer is not to be confused with lung cancer. In lung lining cancer, the effected area of the body is called the mesothelium, a thin membrane that covers many of the internal organs of the body. The mesothelium of the lungs is called the pleura. Lung Lining cancer is also sometimes called mesothelioma after the area in which it occurs. This thin membrane is comprised of two layers ? one that surrounds the organ and another that forms an exterior sac around the first layer. Between the layers of the mesothelium is a fluid that allows vital organs to glide easily against objects that come in contact with them. Localized pleural mesothelioma is not always caused by asbestos exposure. However, if it has spread to other parts of the body, for instance the lymph nodes, lungs, chest wall, or abdominal organs, then it is considered malignant and is more often than not the result of asbestos exposure. Peritoneal mesothelioma appears as a tumor in the peritoneum membrane of the abdomen. This type of mesothelioma is very rare, comprising less than a fourth of all known cases of the disease. There are no effective treatments for this condition, and most patients live less than a year after diagnosis. Mesentery cancer is likened to peritoneal cancer (mesothelioma). This cancer primarily affects the sections of the peritoneum that attach different organs to the wall of the abdominal cavity, (i.e. mesogastrium for the stomach, mesojejunum for the jejunum). Mesentery cancer includes all abdominal peritoneal extensions. Tumors rarely originate in the actual mesentery, though it is a frequent route for the spread of mesothelioma through the abdominal cavity. Pericardial mesothelioma is the rarest form of mesothelioma, affecting the membrane around the heart (called the pericardium or pericardial sac). In this disease, solid masses and effusion (fluid) develop around the pericardium. Not all effusions are strictly related to mesothelioma.
Causes of Mesothelioma Asbestos is the principal cause of Mesothelioma. Asbestos is a type of insulation material, which was commonly utilized in the past in the following industries: Steel Workers Brake Mechanics Insulators Boilermakers Ship fitters Maintenance Workers Pipe Fitters Construction industry Shipbuilding industry Automotive industry Other manufacturing industries Mesothelioma appears most often in people who worked in the above industries and were exposed to asbestos in their workplace. The utilization of asbestos was very prevalent after 1940?s. However it would take 10-40 years after the first exposure for the first symptoms of mesothelioma to become noticeable, which made it very difficult to diagnose. The peak in mesothelioma cases is projected to be reached near year 2010 according to studies. There are three frequently used types of asbestos: white, brown, and blue. Brown and blue asbestos are more frequently associated with mesothelioma. These types of asbestos have been restricted by most countries in the 1990s. A record of asbestos exposure at work is reported in about 70 percent to 80 percent of all cases. Asbestos is a very dangerous material and can cause serious damage to your health. It is made up of very minute fibers, which can find their way to pleura (outside lining of the lung) and damage the cells pleura are made of. These fibers can also be passed on to clothing, which makes them dangerous not only to the person exposed to asbestos, but to their family members as well.
Symptoms Mesothelioma is a very difficult cancer to detect in early stages. The early symptoms tend to be generic and even nonexistent in some cases, and it can take as much as 15 to 50 years after exposure to develop. The first symptom is often constant chest pain, followed by coughing, lung damage, and shortness of breath. Patients who have peritoneal mesothelioma (a less common form of mesothelioma) generally experience abdominal pain, loss of appetite, nausea, and abdominal swelling, often in addition to the symptoms of pleural mesothelioma. They may also develop bowel obstruction or further breathing obstruction.
Symptoms of Mesothelioma Symptoms of mesothelioma may not materialize until 30 to 50 years after exposure to asbestos. Shortness of breath and pain in the chest due to an accumulation of fluid in the pleura are often symptoms of pleural mesothelioma. Symptoms of peritoneal mesothelioma include weight loss and abdominal pain and swelling because of a buildup of fluid in the abdomen. 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, difficulty swallowing, or swelling of the neck or face. These symptoms may be caused by mesothelioma or by other, less serious conditions. It is important to see a doctor about any of these symptoms. Only a doctor can make a diagnosis. Once Mesothelioma is diagnosed, the likelihood of recovery varies according to several factors, including the size and location of the tumor, how much it has spread, and the age of the patient. In general, the earlier that Mesothelioma is diagnosed, the greater the likelihood of survival. If you feel that you have experienced any of the typical Mesothelioma symptoms, pay a visit to your doctor for professional advice.
Mesothelioma diagnosis Diagnosing mesothelioma is often complicated, because the symptoms are similar to those of several other conditions. Diagnosis begins with an assessment of the patient?s medical history, as well as any history of asbestos exposure. A physical examination may be performed, including x-rays of the chest or abdomen and lung function tests. A CT (or CAT) scan or an MRI may also be useful. A CT scan is a series of detailed pictures of areas inside the body created by a computer linked to an x-ray machine. In an MRI, a powerful magnet linked to a computer is used to make detailed pictures of areas inside the body. These pictures are viewed on a monitor and can also be printed. A biopsy is needed to confirm a diagnosis of mesothelioma. In a biopsy, a surgeon or a medical oncologist (a doctor who specializes in diagnosing and treating cancer) removes a sample of tissue for examination under a microscope by a pathologist. A biopsy may be done in different ways, depending on where the abnormal area is found. If the cancer is in the chest, the doctor may perform a thoracoscopy. In this procedure, the doctor makes a small cut through the chest wall and puts a thin, lit tube called a thoracoscope into the chest between two ribs. Thoracoscopy allows the doctor to look inside the chest and obtain tissue samples. If the cancer is in the abdomen, the doctor may perform a peritoneoscopy. To obtain tissue for examination, the doctor makes a small opening in the abdomen and inserts a special instrument called a peritoneoscope into the abdominal cavity. If these procedures do not yield enough tissue, more extensive diagnostic surgery may be necessary. If the diagnosis is mesothelioma, the doctor will want to learn the stage and extent of the disease. Staging involves more tests in a precise effort to find out whether the cancer has proliferated and, if so, to which parts of the body. Knowing the stage of the disease helps the doctor plan treatment. Mesothelioma is described as localized if the cancer is found only on the membrane surface where it originated. It is classified as advanced if it has extended beyond the original membrane surface to other parts of the body, such as the lymph nodes, lungs, chest wall, or abdominal organs.
Mesothelioma treatment Treatment for mesothelioma depends on the location of the cancer, the stage of the disease, and the patient?s age and general well being. Typical treatment options consist of surgery, radiation therapy, and chemotherapy. Sometimes, these treatments are combined. Surgery is a frequent treatment for mesothelioma. The doctor may remove part of the lining of the chest or abdomen and some of the tissue around it. For cancer of the pleura (pleural mesothelioma), a lung may be removed in an operation called a pneumonectomy. Sometimes part of the diaphragm, the muscle below the lungs that helps with breathing, is also removed. Radiation therapy involves the use of high-energy rays to kill cancer cells and shrink tumors. Radiation therapy affects the cancer cells only in the treated area. The radiation may come from a machine (external radiation) or from moving materials that produce radiation through thin plastic tubes into the area where the cancer cells are found (internal radiation therapy). Chemotherapy is the use of anticancer drugs to kill cancer cells throughout the body. Most drugs used to treat mesothelioma are given by injection into a vein (intravenous, or IV). Doctors are also studying the effectiveness of applying chemotherapy directly into the chest or abdomen (intracavitary chemotherapy). To ease symptoms and control discomfort, the doctor may use a needle or a thin tube to drain fluid that has accumulated in the chest or abdomen. The procedure for removing fluid from the chest is called thoracentesis. Removal of fluid from the abdomen is called paracentesis. Drugs may be administered through a tube in the chest to prevent more fluid from accumulating. Radiation therapy and surgery may also be beneficial in alleviating symptoms.
Francisco Rodriguez About the Author: Tips For Choosing a Great Mesothelioma Attorney
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