Surgery

is used in mesothelioma patients in cases where imaging techniques suggest possible invasion of the tumor through the diaphragm. This information can be important in evaluating a patient for potential pleurectomy or extrapleural pneumonectomy.

Palliative Procedures:

Palliative surgical procedures are those which treat a symptom of mesothelioma, without aggressively treating the disease itself.

Chest Tube Drainage and Pleurodesis 

is considered the most common of palliative treatments. Fluid build-up, or pleural effusion, is most often the first symptom which will prompt mesothelioma patients to seek medical attention. Once this effusion has occurred, it is many times persistent, returning rapidly after initial thoracentesis (draining of the fluid). In order to eliminate this problem, the pleural space must be closed. This is accomplished by use of a talc slurry or other sclerosing agent which produces an adhesion. Cancer has numerous forms and no matter what sort of cancer that is being dealt with, normally their treatment is similar. There are three main types of treatments that are adopted for treating cancers. All the experts will probably tell you different things according to their analysis. They might tell you that you since you are afflicted with mesothelioma you have a survival rate of eight to twelve months. However, specialists in treating malignant mesothelioma at the leading cancer centers often have better statistics. For instance, the five-year survival rate has approached 40% for selected patients of Dr. David Sugarbaker at Brigham and Women’s Center in

Boston. To qualify for Dr. Sugarbaker’s treatment you must meet certain criteria. One of them is being in the early stages of the disease, so time is of the essence. The treatment program for mesothelioma depends on many factors, including: the stage of the cancer, where the cancer is, how far the cancer has spread, how the cancer cells look under the microscope and the patient’s age and desires.For the treatment of malignant mesothelioma there is:

1.       Surgery

2.       Chemotherapy

3.       Radiation therapy

Normally, when the treatment is being done out of these three options two or all three are combined so that the result is 100%. Depending on the patients’ immunity system and the stage of his cancer.

SURGERY TREATMENT:  

Diagnostic Procedures

As previously mentioned in the “Symptoms” section of this website, a diagnosis of mesothelioma from fluid is many times inconclusive. Given this fact, diagnostic surgery becomes a necessary next step in confirming and staging mesothelioma.

Thoracoscopy enables a physician to evaluate the pleural cavity and to conduct multiple tissue biopsies under direct vision. In up to 98% of cases, a definitive diagnosis can be obtained. Often, chemical pleurodesis aimed at relieving the accumulation of fluid in the intrapleural space, can be accomplished during the same procedure. It is also possible to gauge the extent of the tumor, and make a determination of surgical resectability. While less invasive than an open biopsy, it can only be performed on patients where tumor has not obliterated the pleural space.

 VATS, or video-assisted thoracic surgery

is an alternative to thoracoscopy, although because of its more invasive nature, concerns of tumor seeding increase. By utilizing small incisions, the physician can view the pleural space with the assistance of a camera, and obtain sufficient tissue samples for analysis by a pathologist. Extent of the tumor (i.e., pleural involvement, chest wall invasion) may also determined, and recommendation as to the type of debulking procedure necessary can be made at this time.

 Mediastinoscopy is sometimes used as an aid in staging extent of disease when enlarged nodes are seen using imaging techniques.

Laproscopy, Thoracoscopy and Pleurodesis is done in conjunction with VATS using a powdered form of talc versus talc slurry. Both this and chest tube drainage and pleurodesis will be only effective if there is no tumor encasing the lung which restricts its expansion.

 Pleuroperitoneal Shunt

plays a limited role in palliation for several reasons. It involves placement of a catheter run under the skin from the pleural to the peritoneal cavity. Obstruction of the catheter and possible seeding of the tumor into the abdominal cavity may be concerns.

Pleurectomy

used as a palliative procedure, may be performed where more extensive surgery is not an option. In these cases, it is understood that all visible or gross tumor will not be removed. It is considered the most effective means of controlling pleural effusion in cases where the lung’s expansion is restricted by disease.

Potentially Curative Procedures

These procedures are performed with “curative intent”. Their goal is removal of all gross disease, with the knowledge that microscopic disease will most likely remain. Adjuvant therapy (another form of treatment in addition to the primary therapy) is typically aimed at eliminating residual disease.  

For Pleural Mesothelioma:

• Pleurectomy/Decortication is usually performed on patients with early stage disease (Stage I and selected Stage II), and attempts to remove all gross tumor. If it is found that all tumor can not be removed without removing the lung, this may be done at the same time and is called pneumonectomy.

• Extrapleural Pneumonectomy is considerably more radical than other surgical approaches, and should be carried out by surgeons with great expertise in evaluating patients and performing the procedure itself. (See Finding Specialists.) Because in the past surgery alone has failed to effect a cure, or even to help prolong life for any extended period of time, it is currently being combined with traditional chemotherapy and/or radiation, or other new approaches such as gene therapy, immunotherapy or photodynamic therapy.

For Peritoneal Mesothelioma:

• Cytoreductive Surgery

In order to treat any remaining cancer cells, Intra-Peritoneal Hyperthermic (heated) Chemotherapy (IPHC) is then delivered to the abdominal cavity. The type of chemotherapy drug used may vary according to the physician’s preference. This is the kind of surgery in which the doctor concentrates on removing the entire tumor that he can see in the affected area. During the surgery it is likely that the surrounding healthy cells are also destroyed along with the cancerous cells. However, there is a form of surgery that does not damage all the cells. The healthy cells are destroyed but in a smaller quantity. It is also mentioned by the surgeons that the malignant mesotheloima that affects the groin can not be cured completely though this may change in the future.

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Up to 9 out of 10 cases of mesothelioma are caused by exposure to asbestos. Asbestos is a natural mineral, mined from rock found in many countries. It is made up of tiny fibres that are as strong as steel but can be woven like cotton and are highly resistant to heat and chemicals.Before the 1980s, asbestos was imported to the

UK in large quantities. It was used in construction, ship-building and in household appliances. When asbestos is disturbed or damaged, it releases tiny fibres that can be breathed into the lungs and cause inflammation, a build-up of scar tissue (fibrosis) and sometimes cancer.During the 1960s the first definite link between mesothelioma and asbestos was made. Asbestos is now known to be the most common cause of the disease.Asbestos was very widely used in insulation materials, such as amosite insulation board, and building materials, including asbestos cement. Asbestos fibres are very fine and if they are breathed in they can make their way into the smallest airways of the lung, so they cannot be breathed or coughed out. Once the fibres are in the lungs the body’s defence mechanism tries to break them down and remove them, which leads to inflammation in the lung tissue.The asbestos fibres can also penetrate through the lung tissue to settle in the pleura (the membrane around the lung). Over many years they can cause mesothelioma or other lung diseases to develop.The asbestos fibres can also be swallowed, and some of the fibres can stick in the digestive system. They can then move into the membrane that lines the abdomen (the peritoneum), where they cause inflammation.The people likely to have been exposed to asbestos include:·        construction workers

·        plumbers

·        electricians

·        boilermakers

·        shipbuilders

·        demolition workers

·        people who lived near to asbestos factories

·        People who worked in places where asbestos was present.

Family members of people who worked with asbestos and brought the dust home on their clothes have sometimes developed mesothelioma.There are three types of asbestos: blue, brown and white. Blue and brown asbestos, are most commonly linked with mesothelioma. They are now very rarely used and cannot be imported into the

UK. Originally, white asbestos was not thought to be dangerous but recent studies have now shown that it is also harmful.Mesothelioma does not usually develop until 10–60 years after exposure to asbestos and for this reason it is often difficult to discover the exact cause.In the 1980s, imports of blue and brown asbestos into the

UK were stopped and in 1999 the importation and use of all asbestos was banned. However, as mesothelioma develops so slowly, it is estimated that by 2015 approximately 3000 people will be diagnosed with mesothelioma each year. The number of people who develop mesothelioma will then start to reduce each year.Occasionally, mesothelioma develops in people who have never been exposed to asbestos. The other causes of the disease are not fully understood, but in rare cases the development of mesothelioma has been linked to exposure to radiation.Currently a research study is taking place to try to find out more about the causes of mesothelioma. It is called the National Study of Occupation and Lung Diseases. Your doctor may invite you to take part in the study, and if you agree you will be asked to fill in a short questionnaire and have a telephone discussion for about an hour with a researcher.Research has not found any evidence that smoking increases a person’s risk of developing mesothelioma. It is also thought that exposure to other building materials such as fibreglass does not increase the risk.

The causes of mesothelioma have a root cause and that is being exposed to asbestos. But the fear of it being a contagious disease is wrong because malignant mesthelioma is not a contagious form of cancer though it remains dangerous and perilous to health and may take lives as they persist. Even the relatives are in no danger being near the victim. Unless, ofcourse they themselves have had asbestos exposure.

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There will always be a cause of some disease and there shall always be a source that will give birth to something or the other. Cancer is an ailment not easily curable. Therefore it is more likely of you to be a victim of diseases if you are not aware of the risks that you are being subjected to.A risk factor is anything that increases your chance of getting a disease such as cancer. Different cancers have different risk factors. For example, exposing skin to strong sunlight is a risk factor for skin cancer. Smoking is a risk factor for cancers of the lung, mouth, larynx, bladder, kidney, and several other organs. Individuals exposed to asbestos should be encouraged to avoid tobacco exposure because together the risk for lung cancer is significantly higher than from smoking without a history of asbestos exposure. But having a risk factor, or even several, does not mean that you will get the disease.

Asbestos

The main risk factor for developing mesothelioma is exposure to asbestos. Asbestos refers to a family of fibrous minerals made of silicate. Asbestos was once used in many products such as insulation, floor tiles, door gaskets, soundproofing, roofing, patching compounds, fireproof gloves and ironing board covers, and even brake pads. As the link between asbestos and mesothelioma has become well known, the use of this material has almost stopped. Most use stopped after 1989, but it is still used in some products. Experts have linked this drop in asbestos use to the fact that the rate of development of mesothelioma is no longer increasing. Still, up to 8 million Americans may already have been exposed to asbestos. Exposure to asbestos particles suspended in air and building materials is much less hazardous except when they are being removed. Since asbestos is a naturally occurring mineral, it can also be found in dust and rocks in certain parts of the

United States as well as the world.

According to the U.S. Environmental Protection Agency, as many as 733,000 schools and public buildings in the country today contain asbestos insulation. People who may be at risk for occupational asbestos exposure include some miners, factory workers, insulation manufacturers, railroad workers, ship builders, gas mask manufacturers, and construction workers, particularly those involved with installing insulation. Several studies have shown that family members of people exposed to asbestos at work have an increased risk of developing mesothelioma, because asbestos fibers are carried home on the clothes of the workers. The incidence rate for mesothelioma in men is dropping, probably because they are no longer being exposed directly to asbestos in their work. But the incidence rate for mesothelioma in women is steady, which suggests that they are being exposed in a way that is not directly tied to work, but more to their environment either at home or work. One example would be asbestos in buildings where they work or live. A study from

California also links mesothelioma to naturally occurring asbestos deposits in mountains. Another important point about asbestos and mesothelioma is that the risk of mesothelioma does not drop with time after exposure to asbestos. The risk appears to be lifelong and undiminished.

There are 2 main forms of asbestos — serpentine and amphiboles.

Serpentine fibers are curly and pliable. Chrysotile is the only type of serpentine fiber and it is the most widely used form of asbestos.

 Amphiboles are thin, rod-like fibers. There are 5 main types — crocidolite, amosite, anthrophylite, tremolite, and actinolyte. Amphiboles (particularly crocidolite) are considered to be the most carcinogenic (cancer-causing). However, even the more commonly used chrysotile fibers are associated with malignant (cancerous) mesotheliomas and should be considered dangerous as well. When asbestos fibers are inhaled, most are cleared in the nose, throat, trachea (windpipe), or bronchi (large breathing tubes of the lungs). Fibers are cleared by sticking to mucus inside the air passages and being coughed up or swallowed. The long, thin, fibers are less readily cleared, and they may reach the ends of the small airways and penetrate into the pleural lining of the lung and chest wall. These fibers may then directly injure mesothelial cells of the pleura, and eventually cause mesothelioma.

Asbestos fibers can also damage cells of the lung and result in asbestosis (formation of scar tissue in the lung), and/or lung cancer. The risk of lung cancer among people exposed to asbestos is increased by 7 times, compared with the general population. Indeed, asbestosis, mesothelioma, and lung cancer are the 3 most frequent causes of death and disease among people with heavy asbestos exposure. Peritoneal mesothelioma, which forms in the abdomen, may result from coughing up and swallowing inhaled asbestos fibers. Cancers of the larynx, pancreas, esophagus, colon, and kidney may also come from asbestos exposure, but the increased risk is small

The risk of developing a mesothelioma is related to how much asbestos a person was exposed to and how long this exposure lasted. People exposed at an early age, for a long period of time, and at higher levels are most likely to develop this cancer. Mesotheliomas take a long time to develop. The time between first exposure to asbestos and diagnosis of mesothelioma is usually between 20 and 50 years.

Radiation

There have been a few published reports of pleural and peritoneal mesotheliomas that developed following exposure to thorium dioxide (Thorotrast). This material was used in the past by doctors for certain x-ray tests. Because Thorotrast was found to cause cancers, it has not been used for many years.

Zeolite This is a silicate mineral, chemically related to asbestos, common in the soil of the Anatoli region of Turkey. Many cases of mesothelioma have been described in this region and may have been caused by this mineral.

Tobacco

Although tobacco smoking has not been associated with developing mesothelioma, the combination of smoking and asbestos exposure greatly increases the risk of lung cancer. Asbestos workers who also smoke have a lung cancer risk 50 to 90 times greater than that of the general population. More asbestos workers die of lung cancer than of mesothelioma

SV40 Virus :Some recent studies have raised the possibility that infection with simian virus 40 (SV40) might increase the risk of developing mesothelioma. Some injectable polio vaccines prepared between 1955 and 1963 were contaminated with SV40. About 10 to 30 million people were probably exposed to the virus.

Intentional infection with SV40 of some laboratory animals, such as hamsters, causes mesotheliomas to develop. Researchers also have noticed that SV40 can cause mouse cells grown in dishes to become cancerous, and that asbestos increases the cancer-causing effect of SV40 on these cells. Other researchers have studied biopsy specimens of human mesotheliomas and detected SV40 DNA. However, similar fragments of SV40 DNA can also be found in noncancerous human tissues and some researchers think the SV40 viruses found are contaminants.

 Another study did find SV40 virus in tissues from mesothelioma patients that did not appear to be contaminants. In this study, which also looked at tissue from healthy people, the SV40 virus wasn’t linked to mesothelioma unless the person was also exposed to asbestos. The researchers in this study thought the SV40 infection was not caused by the polio immunization, but occurred naturally as do other viral infections.

So far, the largest studies addressing this issue in humans have not found any increased risk for mesothelioma or other cancers among people who received the contaminated vaccines as children. But, the peak age range for diagnosis of mesothelioma is 50 to 70 years. Some researchers have pointed out that this issue may remain unresolved until more of the people accidentally exposed to SV40 between 1955 and 1963 reach that age range. Research into this important topic is still underway.

 The different statistics taken from around the world and especially in the United Kingdom show that it still cannot be declared with surety that the cause of malignant mesothelioma is SV40. Researchers have so far been depending on the deductions that they have made using the only amount of discoveries they have managed to make. However, the research will continue making way through the undiscovered.

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THE   STAGES:

Treatment options are often determined by the stage of mesothelioma a patient is in. There are three staging systems currently in use for pleural mesothelioma and each one measures somewhat different variables; peritoneal mesothelioma is not staged.The oldest staging system and the one most often used is the Butchart System which is based mainly on the extent of primary tumor mass and divides mesotheliomas into four stages. The more recent TNM system considers variables of tumor in mass and spread, lymph node involvement, and metastasis. The Brigham System is the latest system and stages mesothelioma according to resectability (the ability to surgically remove) and lymph node involvement. Butchart System – extent of primary tumor mass

• Stage I: Mesothelioma is present in the right or left pleura and may also involve the diaphragm on the same side.
• Stage II: Mesothelioma invades the chest wall or involves the esophagus, heart, or pleura on both sides. Lymph nodes in the chest may also be involved.
• Stage III: Mesothelioma has penetrated through the diaphragm into the lining of the abdominal cavity or peritoneum. Lymph nodes beyond those in the chest may also be involved.
• Stage IV: There is evidence of metastasis or spread through the bloodstream to other organs.

TNM System — variables of T (tumor), N (lymph nodes), M (metastasis)

• Stage I: Mesothelioma involves right or left pleura and may also have spread to the lung, pericardium, or diaphragm on the same side. Lymph nodes are not involved.
• Stage II: Mesothelioma has spread from the pleura on one side to nearby lymph nodes next to the lung on the same side. It may also have spread into the lung, pericardium, or diaphragm on the same side.
• Stage III: Mesothelioma is now in the chest wall, muscle, ribs, heart, esophagus, or other organs in the chest on the same side with or without spread to lymph nodes on the same side as the primary tumor.
• Stage IV: Mesothelioma has spread into the lymph nodes in the chest on the side opposite the primary tumor, or extends to the pleura or lung on the opposite side, or directly extends into organs in the abdominal cavity or neck. Any distant metastases is included in this stage.

Brigham System: (variables of tumor resectability and nodal status)

• Stage I: Resectable mesothelioma and no lymph node involvement
• Stage II: Resectable mesothelioma but with lymph node involvement
• Stage III: Unresectable mesothelioma extending into chest wall, heart, or through diaphragm, peritoneum; with or without extrathoracic lymph node involvement
• Stage IV: Distant metastatic disease.

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Pathology or the scientific study of cells, tissue, or fluid taken from the body is an integral part of a mesothelioma diagnosis. Most hospitals have their own pathology labs staffed by board-certified pathologists and licensed technologists. The importance of pathological diagnosis can not be underestimated, since the course of treatment is dependent upon an accurate diagnosis. To make a diagnosis, pathologists examine tissue under a microscope, and based on established criteria, make a determination of benign vs. malignant cells. Subsequently, the type of cancer is determined. Although most pathologists have a general expertise of various diseases, a small number acquire training in a subspecialty, such as mesothelioma. These are physicians who have received world-wide recognition as premier experts, and have achieved high acclaim for their research, published articles and abstracts, and teaching. For a list of expert pathologists in the field of mesothelioma diagnosis, please call the MW toll free at 1-877-367-6376 or fill in the form at the bottom of this page specifying your request.  Knowing the stage is a factor in helping the doctor forms a treatment plan. Mesothelioma is considered localized if the cancer is confined to the pleura, or advanced if it has spread beyond the pleura to other parts of the body such as the lungs, chest wall, abdominal cavity, or lymph nodes.A pathological approach to the diagnoses of such a complex disease as the cancer is very useful. Defining the nature and going in the depth of any cell is always better in tackling with the disease. It helps doctors, better understand the entire scenario.

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Diagnosing mesothelioma:

Diagnosing cancerous cases is a little difficult and ordinary physicians cannot diagnose caner may it be of any type. It has to be done by cancer experts. The symptoms of different types of cancers is different for each type with an exception of a few.A diagnosis of mesothelioma is most often obtained with careful assessment of clinical and radiological findings in addition to a confirming tissue biopsy. (Learn about typical mesothelioma symptoms.) A review of the patient’s medical history, including history of asbestos exposure is taken, followed by a complete physical examination, x-rays of the chest or abdomen, and lung function tests.

A CT

scan or MRI may also be done at this time. If any of these preliminary tests prove suspicious for mesothelioma; a biopsy is necessary to confirm this diagnosis.

The various techniques of taking images:

There are several imaging techniques which may prove useful when mesothelioma is suspected due to the presence of pleural effusion combined with a history of occupational or secondary asbestos exposure. While these imaging techniques can be valuable in assessing the possibility of the cancer, definitive diagnosis is still most often established through fluid diagnosis or tissue biopsy.Some of the most commonly used imaging methods include:

• X-ray a chest x-ray can reveal pleural effusion (fluid build-up) which is confined to either the right (60%) or left (40%) lung. On occasion, a mass may be seen. Signs of prior non-cancerous asbestos disease, such as pleural plaques or pleural calcification, or scarring due to asbestosis may also be noted. 

• Computed Tomography (CT)

CT scans are also able to define pleural effusion, as well as pleural thickening, pleural calcification, thickening of interlobular fissures, or possible chest wall invasion. CT, however, is not able to differentiate between changes associated with benign asbestos disease (pleural disease), or differentiate between adenocarcinoma of the lung which may have spread to the pleura verses mesothelioma. CT scans may also be valuable in guiding fine needle aspiration of pleural masses for tissue diagnosis.

• Magnetic Resonance Imaging (MRI)

MRI scans are most often used to determine the extent of tumor prior to aggressive treatment. Because they provide images in multiple planes, they are better able to identify tumors as opposed to normal structures. They are also more accurate than CT scans in assessing enlargement of the mediastinal lymph nodes (those lymph nodes which lie between the two lungs), as well as a clear diaphragmatic surface, both of which play an important role in surgical candidacy.

• Positron Emission Tomography (PET)

PET imaging is now becoming an important part of the diagnosis and evaluation of mesothelioma. While PET scans are more expensive than other types of imaging, and are not always covered under insurance, they are now considered to be the most diagnostic of tumor sites, as well as the most superior in determining the staging of mesothelioma. Further explanation of PET scans.

• CT/PET

For patients who may be candidates for aggressive multimodality treatment (surgery, chemotherapy and radiation), accurate clinical staging is extremely important. Integrated CT/PET imaging provides a relatively new tool in this respect, and has become the imaging technique of choice for determining surgical eligibility. By combining the benefits of CT and PET (anatomic and metabolic information) into a single scan, this technology can more accurately determine the stage of the cancer, and can help identify the best treatment option for the patient. Read about a study of CT-PET imaging in preoperative evaluation of patients with malignant pleural mesothelioma.A needle biopsy of the mass, or the removal and examination of the fluid surrounding the lung, may be used for diagnosis, however, because these samples are sometimes inadequate as far as determining cell type (epithelial, sarcomatous, or mixed) or because of the unreliability of fluid diagnosis, open pleural biopsy may be recommended. In a pleural biopsy procedure, a surgeon will make a small incision through the chest wall and insert a thin, lighted tube called a thoracoscope into the chest between two ribs. He will then remove a sample of tissue to be reviewed under a microscope by a pathologist. In a peritoneal biopsy, the doctor makes a small incision in the abdomen and inserts a peritoneoscope into the abdominal cavity. Once mesothelioma is suspected through imaging tests, it is confirmed by pathological examination. Tissue is removed, put under the microscope, and a pathologist makes a definitive diagnosis, and issues a pathology report. This is the end of a process that usually begins with symptoms that send most people to the doctor: a fluid build-up or pleural effusions, shortness of breath, pain in the chest, or pain or swelling in the abdomen. The doctor may order an x-ray or CT scan of the chest or abdomen. If further examination is warranted, the following tests may be done:

• Video-Assisted Thoracoscopic Surgery (VATS)

Over the past decade, the use of video-assisted thoracic surgery (VATS) has become one of the most widely used tools in the diagnosis of mesothelioma. Biopsies of the pleural lining, nodules, masses and pleural fluid can now easily be obtained using this minimally invasive procedure, and other therapies such as pleurodesis (talc) for pleural effusions can be done concurrently.While the patient is under general anesthesia, several small incisions or “ports” are made through the chest wall. The surgeon then inserts a small camera, via a scope, into one incision, and other surgical instruments used to retrieve tissue samples into the other incisions. By looking at a video screen showing the camera images, the surgeon is able to complete whatever procedures are necessaryIn many cases, this video-assisted technique is able to replace thoracotomy, which requires a much larger incision to gain access to the chest cavity, and because it is minimally invasive, the patient most often has less post-operative pain and a potentially shorter recovery period.

• Thoracoscopy

For pleural mesothelioma the doctor may look inside the chest cavity with a special instrument called a thoracoscope. A cut will be made through the chest wall and the thoracoscope will be put into the chest between two ribs. This test is usually done in a hospital with a local anesthetic or painkiller.If fluid has collected in your chest, your doctor may drain the fluid out of your body by putting a needle into your chest and use gentle suction to remove the fluid. This is called thoracentesis.

• Peritoneoscopy

For peritoneal mesothelioma the doctor may also look inside the abdomen with a special tool called a peritoneoscope. The peritoneoscope is put into an opening made in the abdomen. This test is usually done in the hospital under a local anesthetic.If fluid has collected in your abdomen, your doctor may drain the fluid out of your body by putting a needle into your abdomen and using gentle suction to remove the fluid.This process is called paracentesis

Biopsy:   The last way of treatment is a simple biopsy. People to tend to hesitate because of this kind of test but if it is not being detected by other means and the problem persists, symptoms do not fade away then it is always more useful to get a biopsy done.

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Early symptoms:   

When you notice these symptoms in the body you should never ignore them and get them checked as soon as possible. People working in an environment that has asbestos fibers in the air should be more cautious than people not exposed to any such environment.  Mesothelioma symptoms do not appear immeadiately after being exposed to asbestos. It is common for symptoms to appear 25-50 years after the initial exposure. There are instances where no symptoms are present. The onset of symptoms is gradual, and a person often experiences symptoms for four to six months before the diagnosis is made.Mesothelioma symptoms vary depending on the type of mesothelioma.

Mesothelioma Symptoms:

 Persistent cough

 Shortness of breath

 Chest pain

 wheezing

Abdominal pain and swelling

 Weight loss

 Fever

 Anemia

After the disease advances and spread to other organs, symptoms such as jaundice, bowel obstruction, bowel changes, and low blood sugar may be experienced.
These symptoms that are mentioned above can be associated with other minor diseases. Because of their common nature, but if they persist and you may recall being exposed to any form of asbestos then it is advised that you pay a visit to the doctor and get various tests taken.

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The mesothelioma is the cancer that spreads gradually in the lungs and the abdomen. They cancerous cells have to be diagnosed at the initial stage so that its treatment can be started as soon as possible. It normally develops around the tissues that line the lungs. The percentage of mesothelioma of the lungs is bigger than the percentage of abdominal cancer.

The tissue lining of the lungs:

The tissues lining (or covering) the lungs are called the pleura.  There are two pleura.  These can be called pleural membranes.  The gap between them is called the pleural space.  The pleura are fibrous sheets.  They help to protect the lungs.  They produce a lubricating fluid that fills the gap between the two pleura.  This helps the lungs to move smoothly in the chest when they are inflating and deflating as we breathe.
Mesothelioma is most often diagnosed in the pleura.  This is known as pleural mesothelioma. Because it is so close, pleural mesothelioma can also affect the sheet of tissue covering the heart - the pericardium.  Doctors call the pericardium the lining, although it is on the outside of the heart.  It protects the heart and allows it to move smoothly within the sac that surrounds it.  So it does much the same job for the heart as the pleura do for the lungs.

The tissue lining the abdomen:

The tissue lining the abdomen is called the peritoneum.  It helps to protect the contents of the abdomen.  It also produces a lubricating fluid.  This helps the organs to move smoothly inside the abdomen as we move around.

Mesothelioma of the tissues lining the abdominal cavity is known as peritoneal mesothelioma.  It is much less common than pleural mesothelioma.

The relieving part of this type of cancer is that it does not have the nature to spread in the other parts of the body. Biopsy results can help the doctors in finalizing the type of treatment that should be adopted for the treatment of mesothelioma.

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  General information:

All the organs in the human body have a protective layer around them. It is this protective layer because of which the organs stay under protection from various diseases. These protective layers are made up of very thin tissues. They cover organs like the stomach, lungs, liver and heart etc. This tissue is actually known as Mesothelioma. The cancer that develops in these tissues is known as mesothelioma also known as Malignant mesothelioma.

Malignant mesothelioma, a rare form of cancer, is a disease in which cancer (malignant) cells are found in the sac lining the chest (the pleura) or abdomen (the peritoneum). Most people with malignant mesothelioma have worked on jobs where they breathed asbestos.

The Mesothelioma Cell: 

A doctor should be seen if a person has shortness of breath, pain in the chest, or pain or swelling in the abdomen. If there are symptoms, the doctor may order an x-ray of the chest or abdomen. The doctor may look inside the chest cavity for mesothelioma with a special instrument called a thoracoscope. A cut will be made through the chest wall and the thoracoscope will be put into the chest between two ribs. This test, called thoracoscopy, is usually done in the hospital. Before the test, the patient will be given a local anesthetic (a drug that causes a loss of feeling for a short period of time). Some pressure may be felt, but usually there is no pain.

The doctor may also look inside the abdomen (peritoneoscopy) for mesothelioma with a special tool called a peritoneoscope. The peritoneoscope is put into an opening made in the abdomen. This test is also usually done in the hospital. Before the test is done, a local anesthetic will be given.

 If tissue that is not normal is found, the doctor will need to cut out a small piece and have it looked at under a microscope to see if there are any mesothelioma cells. This is called a biopsy. Biopsies are usually done during the thoracoscopy or peritoneoscopy. People can suffer from cancer and there are cases they can survive in the world for quite a long time. All the predictions and deductions that a person can make depend upon a few factors. These factors are as follows:                

• The size of the disease.
• How far has the disease spread?
• The location of the disease.
• The microscopic images of mesothelioma.
• The age factor.
• The response to treatment.

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The possibility of getting a disease from the mineral called asbestos highly depends on the type of asbestos. That should be determined first in order to find out the risk factors involved in its uses. Many governments have been issuing licences for the usage of asbestos. They have created simple guides for the companies extracting this mineral. Campaigns have been made to publicize the awareness. Regulations have been enforced on the labor teams and they have to be followed under all conditions. 

All the three types of asbestos can be dangerous: 

Anyone who disturbs asbestos-containing materials, for example, by working on them or being near them can be affected.

Research has suggested that the groups most at risk are those who carry out building maintenance and refurbishment work, for example (this is not a complete list, nor in any particular order): 

·          demolition contractors;

·          electricians;

·          roofing contractors;

·          painters and decorators;

·          construction contractors; ·          joiners;

·          heating and ventilation engineers;

·          plumbers;

·          telecommunications engineers;

·          gas fitters;

·          fire and burglar alarm installers;

·          plasterers;

·          general maintenance staff;

·          builders;

·          computer installers;

·          shop fitters;

·          Building surveyors. 

The duties under the Control of Asbestos Regulations 2006 are largely the same as under the previous regulations, but there are some important changes: There is a new, lower control limit (which no one must go over) of 0.1 fibres permillilitre of air measured over four hours.Work with textured coatings will, generally, not need to be done by a licensed contractor. It will still need to be done safely by trained, competent people working to certain standards.Employers can no longer carry out work in their own premises with their own workers without a licence if the work would otherwise require a licence.The Regulations are clearer on training. Suitable training is required for anyone who is, or may be, exposed to asbestos. 

Licence:  Work with the most dangerous asbestos-containing materials (which give off high fibre levels when disturbed), requires a licence from the Health and Safety Executive (HSE). Work with most asbestos-containing materials requires a licence.A licence is required for virtually all work with loose packing, sprayed insulation,lagging and asbestos insulation board. Very minor work (which, in total, takes one person no more than one hour, or more people no more than two hours in any seven-day period) does not require a licence. 

The Regulations: 

The regulations apply to all work with asbestos materials carried out by employers, the self-employed and employees. They apply to all work with asbestos whether it requires a licence or not. 

Asbestos management in buildings and construction areas:  Whoever has control of a building has a duty to manage the asbestos in their buildings – your employer should be able to tell you who this is. The duty holder has to take reasonable steps to find out if there are materials containing asbestos in the premises and, if so, how much, where they are and what condition they are in. People can also make small surveys and so on to determine the nature of asbestos. 

The presence of asbestos:   

No employer must carry out demolition, maintenance or any other work which exposes, or may expose, their employees to asbestos in any premises unless they have found out: 

·          whether asbestos is, or may be, present;

·          what type of asbestos it is; ·          what material it is in; and

·          what condition it is in; or

·          If there is any doubt about whether asbestos is present, the employer   has assumed that it is present and that it is not only white asbestos. 

Work Plan 

No work should be carried out with asbestos unless a written plan of work detailing how that work is to be carried out has first been prepared. 

The necessary information and instructions: 

Every employer must give adequate training (which includes information and instruction) to employees who are, or may be, exposed to asbestos, their supervisors and those who do work to help the employer comply with these Regulations. This should make them aware of (among other things): 

·          the properties of asbestos, its health effects and the interaction of asbestos

·          and smoking; ·          the type of materials likely to contain asbestos;

·          n what work could cause asbestos exposure and the importance of preventing

·          exposure;

·          how work can be done safely and what equipment is needed;

·          emergency procedures;

·          Hygiene facilities and decontamination. The training must be given at regular intervals. It needs to be proportionate to the nature and degree of exposure and so should contain the appropriate level of detail, be suitable to the job, and should use written materials, oral presentation and demonstration as necessary. 

Exposure prevention: 

Employers have a duty to prevent exposure so far as is reasonably practicable. If exposure cannot be prevented, it must be reduced so far as is reasonably practicable without workers having to use masks. If that has been done but the exposure would still be above the control limit, the employer has to provide suitable masks which reduce the workers’ exposure to below the control limit and as far below it as is reasonably practicable. It is good practice to use masks and otherpersonal protective equipment even at levels below the control limit.If any employee is exposed to more than the control limit, the employer must: 

·          inform the employees concerned and their representatives;

·          ensure that the work does not continue until adequate action has been taken to reduce exposure to below the control limit;

·          Find out why the control limit was exceeded and take action to prevent it happening again, and take air samples to make sure this action was effective. The employer should make arrangements to deal with accidents, incidents and emergencies. These should minimize the effects of the event and restore the situation to normal. Anyone who may have been affected should be informed immediately. 

The last few tests and measurements need to be handled: 

The air tests and other authoritarian outlooks should be handled by the authorities that have been given the appropriate clearance certification from the government. It is only the necessary measures that should be taken by the governments dealing with the extraction. Health measures should be the first priority of any company. This decreases the risk involved in the nature of the work.

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