Friday, May 27, 2011

What is mesothelioma?

Mesothelioma, malignant mesothelioma rather, is a rare form of cancer that develops from a protective layer that covers a lot of organs, the mesothelium. This is usually caused by exposure to asbestos. The most common is the pleura (the outer layer of the lungs and internal chest wall), but can also occur in the peritoneum (abdominal cavity lining), the pericardium (the sac that surrounds the heart) or tunica vaginalis (the sac that surrounds the testicles). Most people who develop mesothelioma have worked on jobs where they inhaled asbestos particles and glass, or they have been exposed to asbestos dust and fibers in other ways. It has also been suggested that washing the clothes of family members who work with asbestos or glass can put someone at risk for developing mesothelioma. Unlike lung cancer, no association between mesothelioma and smoking, but smoking greatly increases the risk of cancer caused by asbestos others. Those who have been exposed to asbestos often take advantage of attorney to collect damages for asbestos-related diseases, including mesothelioma. Compensation via asbestos funds or lawsuits is an important issue in the legal practice of mesothelioma.

Symptoms of mesothelioma include shortness of breath due to pleural effusion (fluid between the lung and the chest wall) or chest wall pain, and general symptoms such as weight loss. Diagnosis can be suspected with chest X-rays and a CT scan, and confirmed with a biopsy (tissue sample) and microscopic examination. A thoracoscopy (inserting a tube with a camera into the chest) can be used to take biopsies. This allows the introduction of substances such as talc to obliterate the pleural space (called pleurodesis), which prevents more fluid from accumulating and pressing on the lungs. Despite treatment with chemotherapy, radiation therapy or sometimes surgery, the disease carries a poor prognosis. Research about screening tests for early detection of mesothelioma is ongoing.


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. Symptoms of peritoneal mesothelioma include weight loss and cachexia, abdominal swelling and pain due to ascites (accumulation 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, difficulty swallowing, or swelling of the neck or face.
These symptoms may be caused by mesothelioma or by other, less serious conditions. Mesothelioma that affects the pleura can cause signs and symptoms:

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

In severe cases, the person may have many tumor masses. Individuals can develop pneumothorax or lung collapse. This disease can spread, or spread, to other parts of the body.
Tumors that affect the abdominal cavity often do not cause symptoms until they are at the final stage. Symptoms include:

    Stomach ache
    Ascites, or an abnormal buildup of fluid in the abdomen
    Mass in the abdomen
    Problems with bowel function
    Weight loss

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 levels
    Pleural effusion
    Pulmonary emboli, or blood clots in the arteries of the lungs
    Severe ascites

Mesothelioma does not usually spread to the brain, bone, or adrenal glands. Pleural tumors are usually found only on one side of the lungs. Working with asbestos is the major risk factor for mesothelioma. In the United States, asbestos is the major cause of malignant mesothelioma and has been "refuted" associated with the development of mesothelioma. Indeed, the relationship between asbestos and mesothelioma is so strong that many consider mesothelioma is a "signal" or "sentinel" tumor. The history of asbestos exposure in many cases. However, mesothelioma has been reported in some individuals without any known exposure to asbestos. In rare cases, mesothelioma has also been associated with irradiation, intrapleural thorium dioxide (Thorotrast), and inhaling other fibrous silicates, such as erionit. Several studies suggest that simian virus 40 (SV40) may act as a cofactor in the development of mesothelioma.

Asbestos was known in antiquity, but it was not mined and widely used commercially until the late 19th century. Its use greatly increased during World War II. Since the early 1940s, millions of American workers have been exposed to asbestos dust. Initially, the risks associated with exposure to asbestos is not publicly known. However, an increased risk of developing mesothelioma was later found among shipyard workers, people who work in asbestos mines and mills, producers of asbestos products, workers in the heating and construction industries, and other traders. Currently, the official position of the U.S. Occupational Safety and Health Administration (OSHA) and U.S. EPA is that the protection and the "permissible exposure limits" are required by regulations of the United States, while sufficient to prevent a disease that most non-malignant asbestos-related, they are not sufficient to prevent or protect against asbestos-related cancers such as mesothelioma. Likewise, Health and Safety Executive UK Government (HSE) states formally that any threshold for mesothelioma must be at a very low level and it is widely agreed that if any such threshold exists at all, then it can not currently be measured. For practical purposes, therefore, HSE assumes that there is no such "safe" threshold exists. Others have also noted that there was no evidence of a threshold below which there is no risk of mesothelioma. There seems to be a, linear dose-response relationship, with increasing doses of disease produces increased. However, mesothelioma may be associated with a short, low-level or direct exposure to asbestos. Doses required for the effect seems to be lower for asbestos-caused mesothelioma than pulmonary asbestosis or lung cancer. Again, there is no known safe level of exposure to asbestos is associated with an increased risk of mesothelioma.

The duration of mesothelioma to asbestos exposure that can be brief. For example, cases of mesothelioma have been documented with only 1-3 months after infection. People who work with asbestos wear personal protective equipment to reduce risk exposure. Latency, time from first exposure to manifestation of the disease, which is prolonged in the case of mesothelioma. This is almost never less than fifteen years and peak at 30-40 years. In reviewing the cases of occupationally-related mesothelioma, the average latency was 32 years old. Based on data from Peto et al. The risk of mesothelioma seems to rise to the third or fourth power of the first exposure.

Incidence of mesothelioma had been found to be higher in populations living near naturally asbestos. For example, in the heart of Cappadocia, Turkey, mesothelioma causes 50% of all deaths in three small villages - Tuzköy, Karain and Sarıhıdır. Initially, this caused erionit, zeolite minerals with properties similar to asbestos, however, recently, a detailed epidemiological investigation showed that erionit causes mesothelioma mostly in families with a genetic predisposition. Documented presence of asbestos fibers in water supplies and food products has prompted concerns about possible long-term impact and, as yet, unknown exposure of the general population of these fibers.
Exposure to asbestos fibers has been recognized as an occupational health hazard since the early 20th century. Numerous epidemiological studies have linked exposure to asbestos with the development of pleural plaques, pleural thickening spreads, asbestosis, carcinoma of the lung and larynx, gastrointestinal tumors, and diffuse pleural malignant mesothelioma and peritoneal. Asbestos has been widely used in industrial products, including cement, brake linings, gaskets, roofing shingles, flooring products, textiles, and insulation.

Commercial asbestos mining at Wittenoom, Western Australia, occurred between 1945 and 1966. A cohort study of miners working at the mine reported that while no deaths occurred within the first 10 years after crocidolite exposure, 85 deaths due to mesothelioma had occurred in 1985. In 1994, reported 539 deaths from mesothelioma have been reported in Western Australia.

Family members and others living with asbestos workers have an increased risk of developing mesothelioma, and possibly other asbestos related diseases. These risks may result from exposure to asbestos dust brought home on clothing and hair of asbestos workers. To reduce the possibility of showing the family members to asbestos fibers, asbestos workers are usually required to shower and change their clothing before leaving the workplace. Many building materials used in both public and domestic places before the banning of asbestos may contain asbestos. They work doing renovations or DIY activities may expose themselves to asbestos dust. In the UK the use of Chrysotile asbestos was banned in late 1999. Brown and blue asbestos was banned in England around 1985. Buildings built or renovated prior to these dates may contain asbestos materials.

Diagnosing mesothelioma is often difficult, because the symptoms are similar to several other conditions. Diagnosis begins with a review a patient's medical history. History of exposure to asbestos may increase clinical suspicion for mesothelioma. Physical examination performed, followed by chest X-ray and often lung function tests. X-ray may reveal pleural thickening commonly seen after asbestos exposure and increases suspicion of mesothelioma. CT (or CAT) scan or MRI is usually performed. If a large amount of fluid is present, abnormal cells can be detected by Cytopathology if the fluid is aspirated with a syringe. For pleural fluid, was performed by Thoracentesis or tube thoracostomy (chest tube), because the ascites, a paracentesis or ascitic drain, and for pericardial effusion with pericardiocentesis. While the absence of malignant cells cytology does not completely exclude mesothelioma, it makes it much more likely, especially if an alternative diagnosis can be made (eg tuberculosis, heart failure). Unfortunately, the diagnosis of malignant mesothelioma by cytology alone is difficult, even with the pathologist. Generally, a biopsy is needed to confirm the diagnosis of malignant mesothelioma. A doctor remove a tissue sample for examination under a microscope by a pathologist. A biopsy can be done in different ways, depending on where the abnormal area is located. If 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, clear tube called thoracoscope into the chest between two ribs. Thoracoscopy allows the doctor to look inside the chest and obtain tissue samples. Alternatively, a chest surgeon may directly open the chest (thoracotomy). If the cancer in the abdomen, the doctor may perform a laparoscopy. To obtain tissue for examination, the doctor makes a small incision in the abdomen and inserting a special instrument into the abdominal cavity. If this procedure does not yield enough tissue, more extensive diagnostic surgery may be needed. immunohistochemical studies play an important role for the pathologist in distinguishing malignant mesothelioma from neoplastic mimics. There are a variety of tests and panels are available. There is no single perfect test to differentiate mesothelioma from carcinoma or benign versus malignant.

Staging of mesothelioma is based on a recommendation by the International Mesothelioma Interest Group. TNM classification of primary tumor, lymph node involvement, and distant metastases do. Mesothelioma is staged He-IV (single-A for four) based on the TNM status.

There is no universally agreed protocol for screening people who have been exposed to asbestos. Screening tests might diagnose mesothelioma earlier than conventional methods thus improving the survival prospects for patients. Serum osteopontin level might be useful in screening people who are exposed to asbestos for mesothelioma. Soluble mesothelin related protein levels elevated in the serum of approximately 75% of patients at diagnosis and have suggested that it might be useful for screening. Doctors have begun testing Mesomark test that measures levels of mesothelin-related protein soluble (SMRPs) released by mesothelioma cells sick.

mesothelium consists of a single layer of flat to cuboidal cells forming the epithelial lining serous cavities of the body including the peritoneal cavity, pericardial and pleural. Deposition of asbestos fibers in lung parenchyma may lead to penetration of the visceral pleura from where the fiber can then be brought to the pleural surface, thus leading to the development of malignant mesothelial plaques. The process leading to the development of peritoneal mesothelioma remain unresolved, although it has been proposed that asbestos fibers from the lungs is transported to the abdomen and associated organs via the lymphatic system. In addition, asbestos fibers can be stored in the gut after ingestion of sputum contaminated with asbestos fibers.

Pleural contamination with asbestos or other mineral fibers have been shown to cause cancer. Long thin asbestos fibers (blue asbestos, amphibole fibers) are more potent carcinogens than "feathery fibers" (chrysotile or white asbestos fibers). However, there is now evidence that smaller particles may be more dangerous than the fibers is greater. They remain suspended in the air where they can be inhaled and can penetrate more easily and deeper into the lungs. "We will probably discover more about the health aspects of asbestos from [the World Trade Center attack], unfortunately," said Dr. Alan Fein, chief of pulmonary and critical care medicine at North Shore-Long Island Jewish Health System. Dr. Fein has treated several patients for "World Trade Center syndrome" or respiratory ailments from brief exposures only a day or two near the collapsed buildings.

Mesothelioma development in rats has been demonstrated following intra-pleural inoculation of phosphorylated chrysotile fibers. It has been suggested that in humans, transport of fibers to the pleura is critical to the pathogenesis of mesothelioma. This is supported by the observed recruitment of large numbers of macrophages and other cells of the immune system to local lesions of accumulated asbestos fibers in pleural and peritoneal cavity of rats. These lesions continued to attract and accumulate macrophages as the disease progresses, and changes of cells in the lesion culminated in morphologically malignant tumors.

experimental evidence suggests that asbestos acts as a complete carcinogen with the development of mesothelioma occur in stages of initiation and promotion respectively. Molecular mechanisms underlying malignant transformation of normal mesothelial cells by asbestos fibers remain unclear despite the demonstration of the ability of oncogenic (see next-but-one paragraph). However, complete in vitro transformation of normal cells to human mesothelial malignant phenotype following exposure to asbestos fibers has not been achieved. In general, the asbestos fibers are thought to act through direct physical interaction with cells of the mesothelium in conjunction with indirect effects following interaction with inflammatory cells such as macrophages.

Analysis of interaction between asbestos fibers and DNA has shown that phagocytosed fibers are able to make contact with chromosomes, often following the chromatin fiber or become entangled in the chromosome. This contact between asbestos fibers and the chromosomes or structural proteins of the spindle apparatus can lead to complex disorders. The most common abnormality is monosomy of chromosome 22. Other frequent abnormalities include structural arrangement of chromosome arms 1p, 3p, 9P and 6Q.

common gene abnormalities in mesothelioma cell lines include deletion of tumor suppressor genes:

    Neurofibromatosis type 2 at 22q12
    P16INK4A
    P14ARF

Asbestos has also been shown to mediate the entry of foreign DNA into target cells. The establishment of this foreign DNA can cause mutations and oncogenesis by several possible mechanisms:

    Inactivation of tumor suppressor genes
    Activation of oncogenes
    Activation of proto-oncogenes due to incorporation of foreign DNA containing a promoter region
    Activation of DNA repair enzymes, which may be prone to errors
    Activation of telomerase
    Prevention of apoptosis

Asbestos fibers have been shown to alter the function and nature of coming out of macrophages, ultimately creating conditions that support the development of mesothelioma. Following asbestos phagocytosis, macrophages generate increased amount of hydroxyl radicals, which are normally products of anaerobic metabolism of cells. clastogenic agents and membrane-active, however, also known as free radicals are thought to promote asbestos carcinogenicity. These oxidants can participate in the oncogenic process by directly and indirectly interacting with DNA, modifying membrane-related cellular events, including activation of oncogenes and disruption of cellular antioxidant defenses.

Asbestos may also have immunosuppressive properties. For example, chrysotile fibers have been shown to suppress in vitro proliferation of phytohemagglutinin-stimulated peripheral blood lymphocytes, suppress natural killer cell lysis and significantly reduce lymphokine-activated killer cell viability and recovery. In addition, genetic changes in asbestos-activated macrophages may result in the release of mesothelial cells as potential mitogens platelet-derived growth factor (PDGF) and transforming growth factor-ß (TGF-ß), which in turn, can lead to chronic stimulation and proliferation of mesothelial cells after injury by asbestos fibers.

The prognosis for malignant mesothelioma tetap disappointing, although there are some modest improvement on the prognosis of new chemotherapy and multimodality treatment. Treatment of malignant mesothelioma earlier stages have a better prognosis, but treatment is very rare. Clinical behavior of malignancy is affected by several factors including the mesothelial surface and hold the pleural cavity which favors local metastasis via exfoliated cells, invasion to underlying tissue and other organs within the pleural cavity, and the extremely long latency period between asbestos exposure and the development of disease. Histologic subtypes and patient's age and health status also help predict prognosis. The epithelioid histology respond better to treatment and have a survival advantage over sarcomatoid histology.

Operations, by itself, has proved disappointing. In one large series, the median survival with surgery (including extrapleural pneumonectomy) is only 11.7 months. However, studies have shown varying success when used in combination with radiation and chemotherapy (Duke, 2008). (For more information about multimodality therapy with surgery, see below). A pleurectomy / decortication is the most common operation, in which the lining of the chest is removed. Less common is extrapleural pneumonectomy (EPP), in which the lung, lining the inside of the chest, hemi-diaphragm and the pericardium are removed.

For patients with localized disease, and who can tolerate a radical surgery, radiation is often given post-operatively as a treatment konsolidatif. The entire hemi-treated with chest radiation therapy, often given with chemotherapy. Approach of using surgery followed by radiation with chemotherapy has been pioneered by a team of breast oncology at Brigham & Women's Hospital in Boston. Delivering radiation and chemotherapy after radical surgery has led to extended life expectancy in selected patient populations with some patients surviving more than 5 years. As part of the curative approach to mesothelioma, radiotherapy is also commonly applied to the sites chest drain insertion, to prevent the growth of tumors in the chest wall along the path.

Although mesothelioma is generally resistant to curative treatment by radiotherapy alone, palliative treatment regimens are sometimes used to relieve symptoms arising from tumor growth, such as obstruction of major blood vessels. Radiation therapy when given alone with curative intent was never proven to improve survival from mesothelioma. Radiation doses needed to treat mesothelioma that has not surgery would be very toxic.

Chemotherapy is the only treatment for mesothelioma that has been shown to improve survival in randomized and controlled trials. The study, published in 2003 by Vogelzang and colleagues compared chemotherapy alone with cisplatin combination chemotherapy of cisplatin and pemetrexed (brand name Alimta) in patients not receiving chemotherapy for malignant pleural mesothelioma previously and are not candidates for more aggressive surgery "curative". This trial is the first reported survival benefit of chemotherapy in malignant pleural mesothelioma, showed a statistically significant improvement in the survival of an average of 10 months in patients treated with cisplatin alone to 13.3 months in the patients treated with cisplatin in combination with pemetrexed, and who also received supplementation with folate and vitamin B12. Vitamin supplements given to patients most in the trial and pemetrexed-related side effects were significantly smaller in patients who received pemetrexed when they also received 500mcg of folate daily oral and intramuscular vitamin B12 1000mcg every 9 weeks compared with patients receiving pemetrexed without supplements vitamins. Objective response rate increased from 20% in the cisplatin group to 46% in the combination of pemetrexed. Some side effects such as nausea and vomiting, stomatitis, and diarrhea are more common in the combination of pemetrexed group but only affects a minority of patients and the overall combination of pemetrexed and cisplatin was well tolerated when patients received vitamin supplements, good quality of life and lung function tests improved in the combined group of pemetrexed. In February 2004, the United States Food and Drug Administration approved pemetrexed for the treatment of malignant pleural mesothelioma. However, there are still unanswered questions about the optimal use of chemotherapy, including when to start treatment, and the optimal number of cycles to give.

Cisplatin in combination with raltitrexed has demonstrated an improvement in survival similar to that reported for pemetrexed in combination with cisplatin, but raltitrexed is no longer available commercially for this indication. For patients unable to tolerate pemetrexed, cisplatin in combination with gemcitabine or vinorelbine is an alternative, or vinorelbine alone, although not yet shown a survival advantage for these drugs. For patients who can not be used cisplatin, carboplatin can be substituted but non-randomized data have shown lower response rates and high levels of haematological toxicity for carboplatin-based combinations, although the survival rates similar to patients receiving cisplatin.

Treatment regimens involving immunotherapy have yielded variable. For example, intrapleural inoculation of Bacillus Calmette-Guérin (BCG) in an effort to enhance the immune response, was found to be of no benefit to the patient (while it may benefit patients with bladder cancer). Mesothelioma cells proved susceptible in vitro lysis by LAK cells following activation by interleukin-2 (IL-2), but patients undergoing this particular therapy experienced major side effects. Indeed, the trial was stopped considering the very high levels of IL-2 toxicity and the severity of side effects such as fever and cachexia. Nonetheless, other trials involving interferon alpha have proved more encouraging with 20% of patients experienced a decrease greater than 50% in tumor mass combined with minimal side effects.

A procedure known as heated intraoperative intraperitoneal chemotherapy was developed by Paul Sugarbaker at the Washington Cancer Institute. The surgeon removes the tumor as possible followed by the direct administration of the chemotherapy agent, heated to between 40 and 48 ° C, in the stomach. Diperfusi this liquid for 60 to 120 minutes and then drained.

This technique allows administration of high concentrations of selected drugs into the surface of the abdomen and pelvis. Warming chemotherapy treatment increases the penetration of drugs into tissues. Also, heating itself destroy malignant cells over normal cells.

This technique is also used in patients with malignant pleural mesothelioma.

In January 2009, the FDA approved the United States using conventional therapies such as surgery in combination with radiation and or chemotherapy in stage I or II Mesothelioma after the study was conducted through a national study by Duke University concluded an increase of nearly 50 points at the level of remission.

All the standard approach to treating solid tumors, radiation, chemotherapy, and surgery-have been investigated in patients with malignant pleural mesothelioma. Despite surgery, by itself, is not very effective, surgery combined with adjuvant chemotherapy and radiation (trimodality therapy) has resulted in a significant extension of survival (3-14 years) among patients with favorable prognostic factors. However, other large series of multimodality medical examination showed only modest improvement in survival (median survival 14.5 months and only 29.6% surviving 2 years). Reducing the bulk of the tumor with Cytoreductive surgery is the key to extending survival. Two operations have been developed: extrapleural pneumonectomy and pleurectomy / decortication. Indications to perform this operation unique. Surgical options depend on the size of the tumor patients. This is an important consideration because the tumor volume has been identified as a prognostic factor in mesothelioma. Pleurectomy / decortication spare the underlying lung and is performed in patients with early-stage disease when it is intended to remove all visible tumor gross (macroscopic complete resection), not just a palliative. Extrapleural pneumonectomy is a more extensive surgery involving resection of the parietal and visceral pleurae, the underlying lung, ipsilateral diaphragm, and ipsilateral pericardium. This operation is indicated for a subset of patients with more advanced tumors, which can tolerate a pneumonectomy.

Although reported incidence rates have increased in the last 20 years, mesothelioma is still a relatively rare cancer. The incidence rate varies from one country to another, from a low level of less than 1 per 1,000,000 in Tunisia and Morocco, to the highest level in England, Australia and Belgium: 30 per 1,000,000 per year. For comparison, populations with high levels of smoking can have a lung cancer incidence of over 1,000 per 1,000,000. The incidence of malignant mesothelioma currently ranges from about 7 to 40 per 1,000,000 in industrialized Western nations, depending on the amount of asbestos exposure of the population over the last few decades. It has been estimated that incidence may have peaked at 15 per 1,000,000 in the United States in 2004. The incident is expected to continue increasing in other parts of the world. Mesothelioma occurs more often in men than in women and risk increases with age, but this disease can appear in men or women at any age. About one fifth of one third of all mesotheliomas are peritoneal.

Between 1940 and 1979, approximately 27.5 million people are occupationally exposed to asbestos in the United States. Between 1973 and 1984, incidence of pleural mesothelioma among men increased by 300% Caucasian. From 1980 until the late 1990s, the death rate from mesothelioma in the USA increased from 2,000 per year to 3,000, with men four times more likely to get it than women. This price may not be accurate, because it may be that many cases of mesothelioma are misdiagnosed as adenocarcinoma of the lung, which is difficult to differentiate from mesothelioma.

Many diagnostic cases of Mesothelioma, though rare, has had a number of famous patients.

    Malcolm McLaren, former manager of the New York Dolls and the Sex Pistols, died on April 8, 2010.
    Billy Vaughn, American bandleader, died in 1991.
    Hamilton Jordan, Chief of Staff, U.S. President Jimmy Carter and life-long cancer activist, died in 2008.
    Richard J. Herrnstein, a psychologist and co-author of The Bell Curve, died in 1994.
    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 role 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, American architect, died in 1997.
    Bernie Bantul, workers 'rights activists in Australia', fought a long battle for compensation from James Hardie after he contracted mesothelioma after working for the company. He claimed James Hardie knew of the dangers of asbestos before he began working with insulation materials made for power generation. Mesothelioma eventually took his life along with his brothers and hundreds of James Hardie workers. James Hardie made an undisclosed settlement with the Bantul only when his mesothelioma had reached its final phase and it is expected to have no more than 48 hours to live. Australian Prime Minister Kevin Rudd mentioned Bantul extended struggle in his speech after winning the 2007 Australian federal election.
    Actor Steve McQueen was diagnosed with peritoneal mesothelioma on December 22, 1979. He did not offer surgery or chemotherapy because doctors felt the cancer was too advanced. McQueen then seek alternative medicine clinic in Mexico. He died of a heart attack on 7 November, 1980 in Juárez, Mexico, following cancer surgery. He may have been exposed to asbestos while serving with the U.S. Marines as a young adult-asbestos was then commonly used to protect ships' piping-or from its use as an insulating material in automobile racing suit (McQueen was an avid racer and fan).
    Congress of the United States Bruce Vento died of mesothelioma in 2000. Bruce Vento Hopebuilder annual award given by her man? At the Symposium to persons or organizations that have done most to support mesothelioma research and advocacy.
    Rock and roll musician and songwriter Warren Zevon, after a long period of untreated illness and pain, was diagnosed with inoperable mesothelioma in the fall of 2002. Refusing treatments he believed would cripple him, Zevon focused his energy on the recording last album The Wind, including the song "Keep Me in Your Heart," which speaks about her breath failed. Zevon died at his home in Los Angeles, California, on September 7, 2003.
    Christie Hennessy, influential singer-songwriters of Ireland, died of mesothelioma in 2007, and has increasingly refused to accept the prognosis in the weeks before his death. Hennessy's mesothelioma has been associated with his youth was spent working on building sites in London.
    Bob Miner, one of the founders of Software Development Labs, the forerunner of Oracle Corporation, died of mesothelioma in 1994.
    Scottish Labour MP John William MacDougall died of mesothelioma on August 13, 2008, after fighting the disease for two years.
    Australian journalist and news presenter Peter Leonard of Canberra surrendered with conditions on September 23, 2008.
    Terrence McCann, Olympic gold medalist and long time Executive Director of Toastmasters, died of mesothelioma on June 7, 2006, at his home in Dana Point, California.
    Merlin Olsen, the Pro Football Hall of Farmers and television actor, died on March 10, 2010, from mesothelioma who have been diagnosed in 2009.

Although life expectancy with this disease are usually limited, there are well-known survivors. In July 1982, Stephen Jay Gould was diagnosed with peritoneal mesothelioma. After the diagnosis, Gould wrote "The Median Is not The message" for Discover magazine, in which he argued that statistics such as median survival is only useful abstractions, not destiny. Gould lived for 20 years, finally succumbing with metastatic adenocarcinoma of the lung, not mesothelioma. The author Paul Kraus was diagnosed with peritoneal mesothelioma in July 1997. He was given a prognosis of less than one year to live and use a variety of complementary modalities. He continues to live longer prognosis and wrote a book about his experiences "Surviving Mesothelioma and Other Cancer: Patient's Guide" in which he presents the philosophy of healing and decision making that makes use of integrative medicine.

The first lawsuits against asbestos manufacturers who, in 1929. Since then, many claims have been filed against asbestos manufacturers and employers, for neglecting to implement safety measures after the links between asbestos, asbestosis, and mesothelioma known (some reports seem to place this as early as 1898). Obligations arising from the number of lawsuits and people affected has reached billions of dollars. The amount and method of allocating compensation have been the source of many court cases, reaching up to the Supreme Court of the United States, and government efforts at resolution of existing cases and the future. However, for now, the U.S. Congress has not entered and there is no federal law governing the compensation of asbestos.

he was the first lawsuit against asbestos manufacturers was brought in 1929. The parties settled that lawsuit, and as part of the agreement, the attorneys agreed not to pursue the case further. In 1960, an article published by Wagner et al. was seminal in establishing mesothelioma as a disease arising from exposure to asbestos. This article is referred to more than 30 case studies of people who suffer from mesothelioma in South Africa. Some exposures are transient and some were mine workers. Before the use of advanced microscopy techniques, malignant mesothelioma is often diagnosed as a variant form of lung cancer. In 1962 McNulty reported the first diagnosed case of malignant mesothelioma Australian asbestos worker. workers have worked in a factory in the asbestos mines in Wittenoom from 1948 to 1950.

In the town of Wittenoom, asbestos-containing mine waste used to cover schoolyards and playgrounds. In 1965 an article in the British Journal of Industrial Medicine established that people living in asbestos factories and mines, but does not work in them, had contracted mesothelioma.

Despite evidence that the dust associated with asbestos mining and milling causes asbestos related disease, mining began in Wittenoom in 1943 and continued until 1966. In 1974 the first public warning of the dangers of blue asbestos which was published in a cover story called "Is this Killer in Your Home?" Bulletin magazine in Australia. In 1978 the Western Australian Government decided to phase out the town of Wittenoom, following publication of the Ministry of Health, "The Health Hazard at Wittenoom", containing the results of air sampling and assessment of medical information worldwide.

By 1979, the first warrant for negligence related to Wittenoom were insured against CSR and its subsidiary ABA, and the Asbestos Diseases Society was formed to represent the Wittenoom victims.

In Leeds, England Armley asbestos disaster involved a court case against Turner & Newall in which local residents who contracted mesothelioma to claim compensation for asbestos contamination from the company's factory. One prominent case was that the June Hancock, who contracted the disease in 1993 and died in 1997.


Article : Mesothelioma

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