Mesothelioma Cancer

by Peter Nisbet

There are various types of mesothelioma but asbestos lung mesothelioma is an asbestos-induced cancer of the mesothelium of the lung, more familiarly known as the pleura, which is the external lining of the lung.

Many of the major organs of the body have a mesothelium, that of the heart being called the pericardium and of the heart the peritoneum. However, it is with the pleura that we are concerned here, and the symptoms of asbestos lung mesothelioma are what you would expect: coughing, discomfort in the chest cavity and eventual pain.

Before we come to possible treatments and palliative care, let’s have a look at what causes it and why we are still seeing new cases today after asbestos was banned for construction use in the 1970s.

Asbestos comes in several forms, the most dangerous thought to be crocidolite, commonly known as blue asbestos. This form of asbestos is in a highly fibrous form, and it is the inhalation and ingestion of these fibers that cause the problem. They tend to remain in the body for a considerable period of time and it can take up to 40 ��” 45 years before the symptoms of mesothelioma begin to appear, though some people contract it in their 30s.

To complicate the situation, it is not only asbestos that causes the symptoms, but any fibrous silicate, which it is why some compensation cases are not as cut and dry as they could be. To add to this complication, smoking adds to the possibility of cancer and it is argued that many patients would not have contracted mesothelioma had they not smoked.

This is not only an argument made by solicitors in court, but has been established by statistics. It is pretty certain that smokers have a greater tendency of contracting asbestos lung mesothelioma than non-smokers, since attorneys for the employers have used this as a reason for having the otherwise high compensation significantly reduced.

There is a popular misconception that mesothelioma is caused by asbestos, but it is just a misconception. Lung cancer is mesothelioma, and in the USA 80% of mesothelioma cases are caused by smoking. That is an indisputable fact. In order to prove the intervention of asbestos in a case, therefore, not only would the patients have to prove that they had worked with asbestos, but also not to have smoked. Had they smoked, then the award could be greatly reduced.

The term “asbestos lung mesothelioma” is therefore a correct one because that form of the disease to which we are referring is caused by asbestos, and not smoking, is of the pleura of the lung and not of the pericardium or peritoneum, and is mesothelioma.

Its treatment is largely palliative, or intended to ease suffering, because the prognosis is fairly grim. Only about 20% of cases live to 5 years after diagnosis, with most surviving only one year, though much depends on how far the condition had developed by the time it was diagnosed. Chemotherapy and radiation treatment are used, but not successfully, and various degrees of surgery are also used. Removal of the affected lung, pericardium and half the diaphragm is the most major of these, and even that only extends life to a maximum of around five years from diagnosis.

There are new treatments being tested, but all treatment is expensive, and a good attorney is likely necessary to secure the compensation to pay for these. Ultimately hospice care will be required and again compensation money should be kept back for this. Ultimately, in spite of all the treatment given, it is palliative care that will make the last days of the patient bearable, as will the help and support of the family, and this is what compensation can fund.

About the Author
More information on this disease can be obtained from Pete’s webpage Asbestos Lung Mesothelioma where more detail is given of possible treatment.

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Mesothelioma lung cancer is usually associated with asbestos exposure. In fact there are many other risk factors that cause mesothelioma cancer. One of them is the erionite. Erionite is a naturally occurring fibrous mineral that belongs to a group of minerals called zeolites. Zeolites are hydrated aluminosilicates of the alkaline and alkaline-earth metals.
Erionite was used in the past as a noble metal-impregnated catalyst in a hydrocarbon-cracking process. It was studied for use in fertilizers and to control odors in livestock production, because of its ability to selectively adsorb molecules from air or liquids. In many countries erionite blocks were used (and may be are still used) as building material or in stucco pastes and whitewash.
Erionite was mentioned for the first time as a mesothelioma lung cancer risk factor in 1975, when Turkish government presented a study that uncovered a high incidence of a rare malignant mesothelioma in lung tissues of people in certain small villages in the Cappadocia area in Turkey’s central mountainous region. In two small villages the mesothelioma lung cancer accounted for 43% of the deaths during 23 years period of study. Erionite fibers were found in biopsies of lungs of the mesothelioma cancer afflicted people. Comparing this to a 9.7% rate of death from this disease among asbestos insulation installers shows how anomalous this condition was.
Further studies showed erionite causes similar diseases in laboratory animals. When researchers at Mt. Sinai Hospital injected rats with the same dosage of erionite that they used for asbestos, the rats didn’t live long enough to get mesothelioma cancer. At a much-reduced dose, the rats did get cancer. Erionite is probably the most toxic known mineral - a milligram of fibers in the lungs is lethal.
Today erionite is considered so hazardous that the EPA requires any one who intends to manufacture, import or process any article containing erionite to notify the E.P.A. 90 days in advance. This gives the EPA a chance to review, limit or prohibit that activity. Read the rest of article here..

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Mesothelioma cancer is the growth of malignant cells in mesothelium. This mesothelium lining covers the pleural, peritoneal and pericardial cavities. Pleura is a membrane covering the lungs and it is the most common location where mesothelioma cancer occurs also known as pleural mesothelioma. Peritoneum, the protective covering that lines the abdominal cavity may also develop malignant tumors and cause peritoneal mesothelioma.

Mesothelioma is one of the rarest cancers in the world that is caused only by exposure to asbestos. Its exposure can be direct, by inhalation of asbestos or indirect exposure in which the asbestos particles are inhaled from the clothing, hair, equipment or other articles that were previously exposed to asbestos.

Causes of Mesothelioma
Asbestos is a naturally occurring fibrous mineral that is mined in different parts of the world due to its wide utility in various industries. However, it is a deadly carcinogen too and a mojor cause of mesothelioma and asbestosis.

Asbestos fibers are known to cause cancer of the mesothelium. Asbestos is the fibrous form of several minerals and hydrous silicates of magnesium found under ground. There are 3 types of asbestos, the blue one, the while one and the brown one. Of all these 3 types, the blue one also called amphibole, long and thin in structure is more carcinogenic than white or chrysolite asbestos or the brown one known as amosite.

However, in some cases the brown asbestos has also been found to cause mesothelioma. And it is for this reason that people exposed to asbestos even for a short period are vulnerable to the disease.

Pleural Mesothelioma
Asbestos fibers are very fine and easily make their way to the lungs where they settle down in the parenchyma of the lung and penetrate the pleura that later develops malignant mesothelial plaques.

Pleura, which anchors lungs to the chest cavity, is itself a double-layered membrane. The inner layer called visceral pleura surrounds the lungs, while the outer one, known as parietal pleura, forms the lining of the pleural or chest cavity. The two pleural layers are filled with a fluid that helps them to slide over each other as we breathe. As the disease progresses, the delicate pleural membranes thicken and press the lungs. A fluid secreted by the malignant cells, pleural effusion, may also collect between visceral and parietal pleurae that causes problem in breathing and other complications.

Peritoneum Mesothelioma
The asbestos fibers may also cause cancer in the peritoneum, known as peritoneal mesothelioma. This leads to thickening of the membranes surrounding abdominal organs and collection of a fluid, ascites in the abdominal cavity making it swell.

Though it is yet not clear how peritoneal mesothelioma develops, it is believed that from lungs, the asbestos fibers are transported to abdomen and its organs by the lymphatic system or they may be deposited in the gut through saliva contaminated by the asbestos fibers.

Pericardial Mesothelioma
This is the rarest type of mesothelioma cancer that comprises of only 5% of all the mesothelioma cases. Like other types of mesothelioma cancer, pericardial mesothelioma is also caused by the inhalation of asbestos dust and fibers. The lining of the chest cavity which protects the heart is known as pericardium. It is provided with a natural fluid or mucous that provide continuous lubrication to the heart so that it can work properly and perform its functions.

As the asbestos particles settle further into the lining of the chest or pericardial, the cancer spreads in the body. It destroys the heart tissues and muscles that is very hazardous to life and proves fatal for the patient.

Read the rest of article here…

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Mesothelioma lung cancer is usually associated with asbestos exposure. In fact there are many other risk factors that cause mesothelioma cancer. One of them is the erionite. Erionite is a naturally occurring fibrous mineral that belongs to a group of minerals called zeolites. Zeolites are hydrated aluminosilicates of the alkaline and alkaline-earth metals.

Erionite was used in the past as a noble metal-impregnated catalyst in a hydrocarbon-cracking process. It was studied for use in fertilizers and to control odors in livestock production, because of its ability to selectively adsorb molecules from air or liquids. In many countries erionite blocks were used (and may be are still used) as building material or in stucco pastes and whitewash.
Erionite was mentioned for the first time as a mesothelioma lung cancer risk factor in 1975, when Turkish government presented a study that uncovered a high incidence of a rare malignant mesothelioma in lung tissues of people in certain small villages in the Cappadocia area in Turkey’s central mountainous region. In two small villages the mesothelioma lung cancer accounted for 43% of the deaths during 23 years period of study. Erionite fibers were found in biopsies of lungs of the mesothelioma cancer afflicted people. Comparing this to a 9.7% rate of death from this disease among asbestos insulation installers shows how anomalous this condition was.

Further studies showed erionite causes similar diseases in laboratory animals. When researchers at Mt. Sinai Hospital injected rats with the same dosage of erionite that they used for asbestos, the rats didn’t live long enough to get mesothelioma cancer. At a much-reduced dose, the rats did get cancer. Erionite is probably the most toxic known mineral - a milligram of fibers in the lungs is lethal.

Today erionite is considered so hazardous that the EPA requires any one who intends to manufacture, import or process any article containing erionite to notify the E.P.A. 90 days in advance. This gives the EPA a chance to review, limit or prohibit that activity.

Erionite is no longer mined or marketed for commercial purposes. Although other natural zeolites have many commercial uses (pet litter, soil conditioners, animal feed, waste-water treatment, gas absorbents, etc.) So potential occupational exposure to erionite occurs during the production and mining of other zeolites.

And there are questions:

Are there other mineralogical hazards like erionite and asbestos?

Should we expected mesothelioma lung cancer increases not only from asbestos exposure after another 20 - 30 years?

Read the rest of article here…

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There are several factors, in connection with lung cancer. The most common causes are well known:

Nicotine

The cigarette is probably as close connection with the development of lung cancer. A person who smokes two packet of cigarettes per day or more of a chance on seven of the development of lung cancer. Those who smoke a carton of cigarettes per day over a period of twenty-five times as much to develop lung cancer, that a non-smoking restaurant. In addition, people who smoke cigars or pipe, five times more chances for the development of lung cancer a non-smoking restaurant.

The risk of lung cancer increases with the number of cigarettes smoked in the course of your life. Smoking damages the cells in the lungs. At the moment when you smoke, your lungs begin to heal themselves, by the damaged cells healthy, normal cells. Their risk of developing lung cancer falls almost immediately begins when the smoke. Every year, you do not smoke, your chances for the development of lung cancer cases. The fifteenth year, your chances of developing lung cancer are roughly the same as a person who never smoked.

Secondhand Smoke

Also known as passive smoking, the people who regularly secondary smoke have a higher risk of developing lung cancer, even if they do not smoke themselves. Studies have shown that those with a smoker have a higher risk of 24% of developing lung cancer that most non-smokers. The doctors believe that the lung cancer of about 3000 deaths per year in connection with the tobacco smoke in the ambient air.

Asbestos Exposure

Exhibition at the asbestos is a known cause of lung cancer and mesothelioma - cancer in the mucosa of the pleura lung cancer. Asbestos was frequently in the construction and products all days until the end of 1800, by the year 1960. Asbestos separates into fine fibers, silica are trapped in the lung tissue. The mesothelioma is inextricably linked to the asbestos exposure. There are no cases of mesothelioma among persons who have not been, or the asbestos in the workplace or on the environment. A non-smoker, asbestos has five times the risk of lung cancer, a non-smoker who was not suspended. Smoking increases the risk dramatically - that was a smoker asbestos is a risk for lung cancer, the 50 to 90 times higher than for non-smokers.

Radon

It is estimated that approximately 12% of deaths from lung cancer will be issued, radon, colourless, odourless gas that is a byproduct of the decay of uranium. The US Environmental Protection Agency believes that 15% of households in the United States have on the dangerous radon gas, from 15000 to 22000 deaths from lung cancer per year.

Air pollution

The scientists estimate that up to 1% of all deaths from lung cancer are on the air pollution. They feel that the longer the time very dirty air can increase the risks of developing lung cancer associated with passive smoking.

Tags: ambient air, asbestos exposure, cancer increases, cause of lung cancer, close connection, fibers, lung cancer cases, lung tissue, Mesothelioma Cancer, mucosa, nicotine, non smoking, passive smoking, pleura lung, secondary smoke, secondhand smoke, several factors, silica, tobacco smoke