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.
•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.
General Patient Selection Criteria for Extrapleural Pneumonectomy
Extrapleural pneumonectomy is a serious operation, and doctors experienced in this procedure choose their patients carefully. It is up to each individual surgeon to advise the patient on its feasibility and to conduct whatever tests he/she feel are necessary to optimize the patient's chances for survival and recovery. Following is a general list of patient selection criteria. This list may not be all inclusive, and may vary according to the preference of the surgeon.
o Karnofsky Performance Status score of >70. This score relates to what symptoms of disease the patient may be experiencing and how well they are able to conduct their daily activities. Some surgeons may require a higher performance status than others.
o Adequate renal (kidney) and liver function tests; no significant kidney or liver disease.
o Normal cardiac function per electrocardiogram and echocardiography.
o Adequate pulmonary function to tolerate the surgery.
o Disease limited to the ipsilateral hemithorax (the same side of the chest in which the mesothelioma is located) with no penetration of the diaphragm, extension to the heart or extensive involvement of the chest wall.
o Age of the patient is taken into consideration, but may not be as important as their overall status.
Surgeries of this nature should always be done with a complete understanding of the possible benefits and risks involved. If you are considering surgery as a treatment option, speak openly with your doctor about your concerns, and be sure all of your questions are answered to your satisfaction.
For Peritoneal Mesothelioma:
•Cytoreductive Surgery is aimed at removing all or nearly all of the gross or visible tumor in the peritoneal cavity. 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.
Showing posts with label mesothelioma. Show all posts
Showing posts with label mesothelioma. Show all posts
Sunday, February 1, 2009
Pathophysiology of Mesothelioma
The 3 major histological types of mesothelioma are sarcomatous, epithelial, and mixed. Pleural mesothelioma usually begins as discrete plaques and nodules that coalesce to produce a sheetlike neoplasm. Tumor growth usually begins at the lower part of the chest. The tumor may invade the diaphragm and encase the surface of the lung and interlobar fissures.
The tumor may also grow along drainage and thoracotomy tracts. As the disease progresses, it often extends into the pulmonary parenchyma, chest wall, and mediastinum. Pleural mesothelioma may extend into the esophagus, ribs, vertebra, brachial plexus, and superior vena cava.
Asbestos, amphibole asbestos, asbestos-crocidolite, and amosite asbestos in particular, is the principal carcinogen implicated in the pathogenesis. Exposure to chrysotile asbestos is associated with a lower incidence of mesothelioma. The industries associated with asbestos exposure include mining, ship building involving the use of asbestos, asbestos cement manufacture, ceramics, paper milling, auto parts (asbestos brake lining), railroad repair, and insulation. In Turkey, the use of the fibrous substance erionite (similar to amphibole asbestos) in building construction has led to an epidemic of pulmonary mesothelioma. Environmental exposure to asbestos in areas polluted by the substance may increase the incidence of mesothelioma.
Most malignant mesotheliomas have complex karyotypes, with extensive aneuploidy and rearrangement of many chromosomes. A loss of a single copy on chromosome 22 is the most common abnormality.
source here
The tumor may also grow along drainage and thoracotomy tracts. As the disease progresses, it often extends into the pulmonary parenchyma, chest wall, and mediastinum. Pleural mesothelioma may extend into the esophagus, ribs, vertebra, brachial plexus, and superior vena cava.
Asbestos, amphibole asbestos, asbestos-crocidolite, and amosite asbestos in particular, is the principal carcinogen implicated in the pathogenesis. Exposure to chrysotile asbestos is associated with a lower incidence of mesothelioma. The industries associated with asbestos exposure include mining, ship building involving the use of asbestos, asbestos cement manufacture, ceramics, paper milling, auto parts (asbestos brake lining), railroad repair, and insulation. In Turkey, the use of the fibrous substance erionite (similar to amphibole asbestos) in building construction has led to an epidemic of pulmonary mesothelioma. Environmental exposure to asbestos in areas polluted by the substance may increase the incidence of mesothelioma.
Most malignant mesotheliomas have complex karyotypes, with extensive aneuploidy and rearrangement of many chromosomes. A loss of a single copy on chromosome 22 is the most common abnormality.
source here
Pleural Mesothelioma’s Unique Indicator Of The Onset Of Mesothelioma
Pleural mesothelioma diagnosis is typically met with the striking news that a patient has less than a year or two to live. Early diagnosis of pleural mesothelioma can increase the likelihood of effective treatment. Identifying a level of protein from a specific gene might just be the key to early mesothelioma treatment.
Pleural mesothelioma is significantly more alarming than other asbestos-caused diseases such as asbestosis because of the high risk of death that comes along with the diagnosis of this cancer. However, the short life span that follows mesothelioma is often a result of its late diagnosis. If this asbestos caused cancer were to be diagnosed earlier, then potentially life-saving treatment could begin earlier.
Pleural mesothelioma and asbestosis are lung diseases that produce symptoms similar to hundreds of other potential respiratory illnesses and cancers. Although a history of working with asbestos is a strong indicator that asbestos may be the cause of a patient’s lung disease, many patients fail to mention their working history to their physicians, and many physicians dismiss the possibility of asbestos related disease because of its low reported statistics. These statistics, however, are vastly under-reported, as many countries do not have the access to the medical knowledge, equipment, or personnel to correctly determine and report asbestos-caused diseases. Asbestos use continues to thrive around the world, and the incidences of asbestos caused cancer and asbestosis will continue to thrive as well.
Medial researchers are trying to prepare for the future epidemic of asbestos illnesses that the asbestos workers of today will be suffering from in the upcoming decades. Although a cure for pleural mesothelioma is far off in the distance, medical researchers have found that a protein gene identified as osteoprontin exists in patients with this disease and their serum osteoprontin levels are six times higher than other lung disease patients. Osteoprontin is typically associated with the bones since it is a protein located in the bones. However, the gene is an active participant and an important player in bone remodeling, wound healing, and the immune system. The University of Bristol in the UK also found that the gene needs to be suppressed to prevent dangerous scarring of internal tissues and have begun to work on a gel to speed up wound healing that facilitates this suppression.
For patients suffering from undiagnosed respiratory illnesses, identifying an increase in serum osteoprontin can distinguish asbestos cancer from asbestosis or lung cancer. This will save years of unnecessary testing and expenses, provide the opportunity for early cancer treatment, and even increase the swiftness of processing asbestos workers’ compensation claims.
Pleural mesothelioma research, medical research on asbestosis, and medical research on other asbestos-related diseases continues to contribute valuable findings that can contribute to improving care and provide valuable medical insights that can be applied within multiple medical fields. Soluble mesothelin-related peptide is similar to osteoprontin, and is also a unique identifier of mesothelioma. Accessible medical access that can test individuals for both of these unique markers can have a significant impact on the health and longevity of today’s asbestos workers. Lung diseases may soon be more easily differentiated. But that isn’t enough. Medical accessibility must be improved around the world so today’s asbestos workers can get the early treatment they need to survive.
By: Avi Solutions
Pleural mesothelioma is significantly more alarming than other asbestos-caused diseases such as asbestosis because of the high risk of death that comes along with the diagnosis of this cancer. However, the short life span that follows mesothelioma is often a result of its late diagnosis. If this asbestos caused cancer were to be diagnosed earlier, then potentially life-saving treatment could begin earlier.
Pleural mesothelioma and asbestosis are lung diseases that produce symptoms similar to hundreds of other potential respiratory illnesses and cancers. Although a history of working with asbestos is a strong indicator that asbestos may be the cause of a patient’s lung disease, many patients fail to mention their working history to their physicians, and many physicians dismiss the possibility of asbestos related disease because of its low reported statistics. These statistics, however, are vastly under-reported, as many countries do not have the access to the medical knowledge, equipment, or personnel to correctly determine and report asbestos-caused diseases. Asbestos use continues to thrive around the world, and the incidences of asbestos caused cancer and asbestosis will continue to thrive as well.
Medial researchers are trying to prepare for the future epidemic of asbestos illnesses that the asbestos workers of today will be suffering from in the upcoming decades. Although a cure for pleural mesothelioma is far off in the distance, medical researchers have found that a protein gene identified as osteoprontin exists in patients with this disease and their serum osteoprontin levels are six times higher than other lung disease patients. Osteoprontin is typically associated with the bones since it is a protein located in the bones. However, the gene is an active participant and an important player in bone remodeling, wound healing, and the immune system. The University of Bristol in the UK also found that the gene needs to be suppressed to prevent dangerous scarring of internal tissues and have begun to work on a gel to speed up wound healing that facilitates this suppression.
For patients suffering from undiagnosed respiratory illnesses, identifying an increase in serum osteoprontin can distinguish asbestos cancer from asbestosis or lung cancer. This will save years of unnecessary testing and expenses, provide the opportunity for early cancer treatment, and even increase the swiftness of processing asbestos workers’ compensation claims.
Pleural mesothelioma research, medical research on asbestosis, and medical research on other asbestos-related diseases continues to contribute valuable findings that can contribute to improving care and provide valuable medical insights that can be applied within multiple medical fields. Soluble mesothelin-related peptide is similar to osteoprontin, and is also a unique identifier of mesothelioma. Accessible medical access that can test individuals for both of these unique markers can have a significant impact on the health and longevity of today’s asbestos workers. Lung diseases may soon be more easily differentiated. But that isn’t enough. Medical accessibility must be improved around the world so today’s asbestos workers can get the early treatment they need to survive.
By: Avi Solutions
A Brief Overview Of What Mesothelioma Cancer Is
Mesothelioma is a type of cancer that is found usually among men who are advanced in years. This type of cancer is caused from the effects of exposure to asbestos ad as a result affects the membranes of our vital organs such as the heart and lungs. Mesothelioma cancer is not very easy to diagnose due to the fact that the symptoms this type of cancer presents are very similar to other diseases that are much more common.
Pleural Mesothelioma
Pleural Mesothelioma is the most common form of this disease and as a direct result accounts for around 75% of all cases of this disease. This type of cancer (Pleural Mesothelioma) attacks and affects the lining of the lungs and presents common symptoms such as shortness of breath, coughing and wheezing, chest pains, difficulty in swallowing and even weight loss. As we have said, these symptoms are very common to other diseases but anyone who has any of them we would strongly suggest consulting their doctor right away just to be on the safe side.
Peritoneal Mesothelioma
One of the less common forms of Mesothelioma is called Peritoneal Mesothelioma and this type of cancer affects the abdomen. Peritoneal Mesothelioma cancer affects the abdominal lining and frequently found in people who have been exposed to asbestos and accounts for around 20% of all Mesothelioma cases. Symptoms of Peritoneal Mesothelioma are as follows: abdominal pains, abdominal swelling, weight loss, loss of appetite, weakness and nausea.
People who have worked with asbestos or have been exposed to the substance are at risk of developing the disease. One of the most important things that we should remember when dealing with this type of cancer is speed. Early diagnosis of the disease is of utmost importance so that it can be treated quickly. With time being of importance when dealing with Mesothelioma, the earlier it is discovered the more chance we have of success in its treatment.
By: Robert Granger
Pleural Mesothelioma
Pleural Mesothelioma is the most common form of this disease and as a direct result accounts for around 75% of all cases of this disease. This type of cancer (Pleural Mesothelioma) attacks and affects the lining of the lungs and presents common symptoms such as shortness of breath, coughing and wheezing, chest pains, difficulty in swallowing and even weight loss. As we have said, these symptoms are very common to other diseases but anyone who has any of them we would strongly suggest consulting their doctor right away just to be on the safe side.
Peritoneal Mesothelioma
One of the less common forms of Mesothelioma is called Peritoneal Mesothelioma and this type of cancer affects the abdomen. Peritoneal Mesothelioma cancer affects the abdominal lining and frequently found in people who have been exposed to asbestos and accounts for around 20% of all Mesothelioma cases. Symptoms of Peritoneal Mesothelioma are as follows: abdominal pains, abdominal swelling, weight loss, loss of appetite, weakness and nausea.
People who have worked with asbestos or have been exposed to the substance are at risk of developing the disease. One of the most important things that we should remember when dealing with this type of cancer is speed. Early diagnosis of the disease is of utmost importance so that it can be treated quickly. With time being of importance when dealing with Mesothelioma, the earlier it is discovered the more chance we have of success in its treatment.
By: Robert Granger
Introduction To Asbestos: 10 Key Facts
1. Asbestos is a naturally occurring mineral which has been used for thousands of years!
2. The asbestos mineral is mined from the earth.
3. The asbestos mineral in its natural state is harmless.
4. Asbestos becomes potentially harmful to health when it is mined or used in the manufacture of other products, essentially once it is in dust or fibrous form and capable of being inhaled or swallowed it becomes potentially harmful to health and can cause asbestos disease.
5. Exposure to asbestos dust/fibres by way of inhalation and/or swallowing can lead to the development of one or more of the following asbestos diseases: malignant mesothelioma, asbestos lung cancer; asbestosis, pleural thickening and pleural plaques.
6. Malignant mesothelioma and asbestos lung cancer are, as their names suggest, forms of cancer and have no cure.
7. Asbestosis is scarring on the lungs which can cause problems with the respiratory system and whilst not so aggressive as malignant mesothelioma and asbestos lung cancer it usually gets worse over time. Although not normally a fatal condition in itself it often combines with other health issues to become a serious health issue.
8. Pleural thickening is thickening of the linings of the lungs and can cause symptoms of breathlessness and pain. Although not a fatal condition in itself it is evidence of exposure to asbestos and therefore a marker of the risks of developing one of the more serious asbestos diseases i.e. malignant mesothelioma or asbestos lung cancer.
9. Pleural plaques are patches of fibrosis (scarring) of the lungs and are often calcified. They rarely cause symptoms of breathlessness and pain. Although not a fatal condition in themselves, they are, like pleural thickening, they are evidence of exposure to asbestos and therefore a marker of the risks of developing the more serious asbestos diseases.
10. Despite pleural plaques representing scarring on the lungs sufferers are no longer entitled to receive compensation for them. This is despite the fact that for the 20 years or so prior to 2006 compensation was routinely paid by insurers for this condition! There is an important distinction to be made here and that is if the pleural plaques are causing symptoms eg pain and breathlessness the sufferer is entitled to compensation.
By: clicknige
2. The asbestos mineral is mined from the earth.
3. The asbestos mineral in its natural state is harmless.
4. Asbestos becomes potentially harmful to health when it is mined or used in the manufacture of other products, essentially once it is in dust or fibrous form and capable of being inhaled or swallowed it becomes potentially harmful to health and can cause asbestos disease.
5. Exposure to asbestos dust/fibres by way of inhalation and/or swallowing can lead to the development of one or more of the following asbestos diseases: malignant mesothelioma, asbestos lung cancer; asbestosis, pleural thickening and pleural plaques.
6. Malignant mesothelioma and asbestos lung cancer are, as their names suggest, forms of cancer and have no cure.
7. Asbestosis is scarring on the lungs which can cause problems with the respiratory system and whilst not so aggressive as malignant mesothelioma and asbestos lung cancer it usually gets worse over time. Although not normally a fatal condition in itself it often combines with other health issues to become a serious health issue.
8. Pleural thickening is thickening of the linings of the lungs and can cause symptoms of breathlessness and pain. Although not a fatal condition in itself it is evidence of exposure to asbestos and therefore a marker of the risks of developing one of the more serious asbestos diseases i.e. malignant mesothelioma or asbestos lung cancer.
9. Pleural plaques are patches of fibrosis (scarring) of the lungs and are often calcified. They rarely cause symptoms of breathlessness and pain. Although not a fatal condition in themselves, they are, like pleural thickening, they are evidence of exposure to asbestos and therefore a marker of the risks of developing the more serious asbestos diseases.
10. Despite pleural plaques representing scarring on the lungs sufferers are no longer entitled to receive compensation for them. This is despite the fact that for the 20 years or so prior to 2006 compensation was routinely paid by insurers for this condition! There is an important distinction to be made here and that is if the pleural plaques are causing symptoms eg pain and breathlessness the sufferer is entitled to compensation.
By: clicknige
Why Mesothelioma Is Such A Dangerous Disease
The main cause of the deadly cancer of mesothelioma is the exposure of the human body to the mineral known as asbestos. This mineral is found freely in nature and was used in the manufacture of many products. The reason behind the deadly nature of this disease is the long latency period of the asbestos particles. Once the asbestos particles manage to make their way inside the human body, it becomes difficult for the human body to dislodge them by means of normal body mechanisms. These asbestos particles remain dormant for as long as 30 to 40 years and after that they start interfering with the working of the mesothelial cells. There is another factor that makes this disease a dangerous disease.
The symptoms of mesothelioma are not specific to the disease itself. In fact they are common with many other diseases that are known to man. As a result the patient and the doctor are both on many occasions unable to correctly diagnose the symptoms as those of mesothelioma. By the time the disease is identified it has already reached its last stages when the best option available with the physician is to make the remaining time span of the patient more pain free and comfortable.
All these factors make the cancer of mesothelioma a really dangerous disease. The best way to prevent this disease from taking many more lives is by stopping the mining and use of asbestos from every quarter of life. The medical community should also start working on this disease at the war footing. The sooner we take cudgels against this cancer the better it would be for the human life.
By: kevin jsmith
The symptoms of mesothelioma are not specific to the disease itself. In fact they are common with many other diseases that are known to man. As a result the patient and the doctor are both on many occasions unable to correctly diagnose the symptoms as those of mesothelioma. By the time the disease is identified it has already reached its last stages when the best option available with the physician is to make the remaining time span of the patient more pain free and comfortable.
All these factors make the cancer of mesothelioma a really dangerous disease. The best way to prevent this disease from taking many more lives is by stopping the mining and use of asbestos from every quarter of life. The medical community should also start working on this disease at the war footing. The sooner we take cudgels against this cancer the better it would be for the human life.
By: kevin jsmith
Friday, January 30, 2009
Notable people who died from mesothelioma
Mesothelioma, though rare, has had a number of notable patients. Hamilton Jordan, Chief of Staff for President Jimmy Carter and life long cancer activist, died in 2008. Australian anti-racism activist Bob Bellear died in 2005. British science fiction writer Michael G. Coney, responsible for nearly 100 works also died in 2005. American film and television actor Paul Gleason, perhaps best known for his portrayal of Principal Richard Vernon in the 1985 film The Breakfast Club, died in 2006. Mickie Most, an English record producer, died of mesothelioma in 2003. Paul Rudolph, an American architect known for his cubist building designs, died in 1997.
Bernie Banton was an Australian workers' rights activist, who fought a long battle for compensation from James Hardie after he contracted mesothelioma after working for that company. He claimed James Hardie knew of the dangers of asbestos before he began work with the substance making insulation for power stations. Mesothelioma eventually took his life along with his brothers and hundreds of James Hardie workers. James Hardie made an undisclosed settlement with Banton only when his mesothelioma had reached its final stages and he was expected to have no more than 48hrs to live. Australian Prime Minister Kevin Rudd mentioned Banton's extended struggle in his acceptance speech after winning the 2007 Australian Federal Election.
Steve McQueen was diagnosed with peritoneal mesothelioma on December 22, 1979. He was not offered surgery or chemotherapy because doctors felt the cancer was too advanced. McQueen sought alternative treatments from clinics in Mexico. He died of a heart attack on November 7, 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 insulate ships' piping—or from its use as an insulating material in car racing suits.[14] (It is also reported that he worked in a shipyard during World War II, where he might have been exposed to asbestos.[citation needed])
United States Congressman Bruce Vento died of mesothelioma in 2000. The Bruce Vento Hopebuilder is awarded yearly by his wife at the MARF Symposium to persons or organizations who have done the most to support mesothelioma research and advocacy.
After a long period of untreated illness and pain, rock and roll musician and songwriter Warren Zevon was diagnosed with inoperable mesothelioma in the fall of 2002. Refusing treatments he believed might incapacitate him, Zevon focused his energies on recording his final album The Wind including the song "Keep Me in Your Heart," which speaks of his failing breath. Zevon died at his home in Los Angeles, California, on September 7, 2003.
Christie Hennessy, the influential Irish singer-songwriter, died of mesothelioma in 2007, and had stridently refused to accept the prognosis in the weeks before his death.[15] His mesothelioma has been attributed to his younger years spent working on building sites in London.[16][17]
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 13th, 2008, after fighting the disease for two years.[18].
Canberra journalist and news presenter, Peter Leonard also succumbed to the condition on 23 September 2008.
Terrence McCann Olympic gold medalist and longtime Executive Director of Toastmasters, died of mesothelioma on June 7, 2006 at his home in Dana Point, California.
source here
Mesothelioma
From Wikipedia, the free encyclopedia
Mesothelioma is a form of cancer that is almost always caused by previous exposure to asbestos. In this disease, malignant cells develop in the mesothelium, a protective lining that covers most of the body's internal organs. Its most common site is the pleura (outer lining of the lungs and internal chest wall), but it may also occur in the peritoneum (the lining of the abdominal cavity), the heart,[1] the pericardium (a sac that surrounds the heart) or tunica vaginalis.
Most people who develop mesothelioma have worked on jobs where they inhaled asbestos particles, or they have been exposed to asbestos dust and fiber in other ways. Washing the clothes of a family member who worked with asbestos can also put a person at risk for developing mesothelioma.[2] Unlike lung cancer, there is no association between mesothelioma and smoking.[3] Compensation via asbestos funds or lawsuits is an important issue in mesothelioma (see asbestos and the law).
The 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. The diagnosis may be suspected with chest X-ray and CT scan, and is 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. It 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 lung. Despite treatment with chemotherapy, radiation therapy or sometimes surgery, the disease carries a poor prognosis. Research about screening tests for the early detection of mesothelioma is ongoing.
Source here
Thursday, January 29, 2009
MESOTHELIOMA GLOSSARY
* Abdominal mesothelioma
Another name for peritoneal mesothelioma. Cancer of the lining of the abdominal cavity.
* Acute pain
Pain that comes on quickly and may be severe, but lasts a relatively short period of time.
* Adenocarcinoma
cancer that forms in the cells of glands or in parts of the body that produce mucous. Also called "nonsmall cell lung cancer". Tumors include cube or column-shaped cells found along the outer edges of the lungs and under the membrane lining of the bronchi.
* Adjuvant therapy
Chemotherapy drugs (including hormones) given after surgery or radiation or both to help prevent the cancer from coming back.
* Alopecia
Autoimmune disease occurring on areas of the body (most commonly the scalp) where a person’s immune system attacks hair follicles suppressing and arresting hair growth.
* Alveoli
Tiny structures inside the lungs responsible for pulmonary gas exchange. Asbestos fibers become lodged in these structures which may lead to scarring.
* Anemia
Having too few red blood cells. Common side effect of chemotherapy. Symptoms of anemia include feeling tired, weak, and short of breath.
* Angiogenesis
The formation of new blood vessels. Angiogenesis is essential for the growth of tumors. Tumor cells release chemicals to encourage blood vessel growth.
* Angiogenesis Inhibitor
A chemical which signals the process of angiogenesis to stop and thereby prevents the formation of blood vessels. In anticancer therapy, an angiogenesis inhibitor prevents the growth of blood vessels from surrounding tissue to a solid tumor.
* Antiangiogenesis
Prevention of the growth of new blood vessels. Drug designers use this strategy to try to slow tumor growth.
* Asbestos
A mineral fiber. Breathing high levels of asbestos fibers can lead to lung cancer.
* Ascites
An accumulation of fluid in the peritoneal cavity symptomatic of mesothelioma and also found in patients with cirrhosis.
* Biologic therapy
Treatment that stimulates the body's immune defense system to fight infection and disease. Also called immunotherapy. Some doctors consider this a type of chemotherapy, but it is usually classified as a separate type of treatment.
* Brachytherapy
One of the earliest forms of cancer treatment, brachytherapy involves the insertion of small tube-like seeds that contain a dose of radiation into or directly next to a tumor. This has largely been replaced by external radiation therapy but is still a common treatment for prostate cancer.
* Breakthrough pain
Pain that occurs in patients with chronic pain that is controlled by medications. The pain "breaks through" the normal control.
* Carcinogen
A substance that is known to cause cancer. Asbestos can be considered a carcinogen because it can cause mesothelioma. More about carcinogens.
* CAT scan
Computerized tomography - a diagnostic medical test that uses X-Rays to create a 3-dimensional image of part of the body. Also called CT scans.
* Chemotherapy
The use of anticancer drugs, generally administered through an IV, to treat cancer.
* Chronic pain
Pain that may range from mild to severe and persists or progresses over a long period of time.
* Clinical Trials
Medical studies designed to compare a well-known, or standard, treatment with a new or alternative treatment. Clinical trials are usually done in three phases. Phase I tests the safety of the treatment on a small number of patients. Phase II assesses the effectiveness of the treatment and usually involves a larger group of people. Phase III provides in-depth information about the effectiveness and safety, by comparing experimental treatment with the standard protocol. Phase III trials usually involve several thousand patients nationwide.
* Combination Chemotherapy
The use of more than one drug to treat cancer.
* Decortication
A surgical procedure involving the removal of the membrane or outer cover of an organ. The procedure is commonly performed on mesothelioma patients if the lung is constricted and cannot be totally inflated.
* Diagnostic
The use of skilled and scientific methods to establish the cause and nature of a disease.
* Double-Blind
Clinical trial in which participants do not know what treatment they are receiving. The doctors and nurses treating them don't know either. Researchers keep this information secret until each patient's health status is known, usually after at least a year or more of treatments.
* Dyspnea
Shortness of breath; difficulty breathing..
* Epidemiology
The study of a disease that is widespread and rapidly spreading.
* Epithelial Cells
One of the 4 main bodily tissues, they often compose the linings of organs and membranes as well as the skin. These cells line the insides of the lungs.
* Etiology
The science and study of the causes, origins and reasons of diseases and their mode of operation.
* Gene Therapy
A technique for modifying genes responsible for disease development. Still largely experimental.
* Immunotherapy
A treatment which activates the bodies own immune system to destroy disease. Treatment of disease by stimulating the body s own immune system. This is a type of therapy currently being researched as a treatment for cancer.
* Intensity Modulated Radiation Therapy (IMRT)
High-precision radiation therapy technique uses computer-controlled x-ray beams so that the radiation delivery conforms to the shape of the tumor. It does this by modulating-or controlling-the intensity of the radiation beam to focus a higher radiation dose to the tumor while minimizing radiation to surrounding healthy tissues.
* Laparoscope
A small telescoping rod inserted into the body during laparoscopy. It often contains an illuminating device and a camera to transmit images to the operating physician. It can also have a small component capable of removing tissue for sampling.
* Laparoscopy
A minimally invasive surgical procedure where small incisions are made in the abdominal area and a laparoscope is inserted into the body. Often used for biopsies it can also be used for minor surgeries.
* Macrophages
Cells that digest pathogens and cellular debris. When trying to digest inhaled asbestos fibers in the lungs, they often split open and their internal fluids then damage the alveoli. The damage is then multiplied as more macrophages try to digest the particle and eventually fibrosis may develop.
* Markers
Physiological indications of the presence of cancer. Mesothelioma is often diagnosed with the immunohistochemical markers.
* Mediastinoscopy
A surgical procedure to examine the inside of the upper chest between and in front of the lungs (also known as the mediastinum). During a mediastinoscopy, a thin scope (mediastinoscope) is inserted through a small incision. A tissue sample (biopsy) can be collected through the mediastinoscope and then examined.
* Mesothelin
A glycosylphosphatidylinositol-linked glycoprotein. A cell surface antigen. The biological function is not known, but the protein is expressed in large quantities in mesothelial cells, and in mesotheliomas and other cancers.
* Mesothelioma
A form of cancer where the primary tumor is on the mesothelium - the internal lining of body cavities. Mesothelioma is a carcinoma. It is called pleural mesothelioma when the pleural cavity is affected and peritoneal mesothelioma when the tumor is in the abdominal cavity. Most mesothelioma cases can be traced to inhalation of asbestos fibers.
* Mesothelium
Membrane that lines the pleura, peritoneum, and pericardium and produces lubricating fluids to allow the heart and lungs to glide against neighboring structures
* Metastasis/Metastasized
The spread of cancer cells to distant areas of the body through the lymph system or bloodstream.
* MRI
magnetic resonance imaging - a diagnostic medical test that uses magnetic fields to create a 3-dimensional image of part of the body.
* Multimodality therapy
* Oncogenesis
The development of cellular changes leading to the development of a malignant tumor
* Opioids
Powerful prescription medications that are administered to relieve severe pain. Common opioids are endorphin, fentanyl and methadone.
* Palliative
Treatment that is not expected to cure, but rather to slow down the progress of a disease and make the person comfortable and as happy as possible throughout the process.
* Paracentesis
Medical procedure that uses a needle remove/drain fluid accumulated in the abdominal cavity (peritoneal fluid). These fluid deposits are also called ascites.
Used in the diagnosis of mesothelioma.
* Parenchyma
The functional parts of an organ. For instance alveoli are part of the parenchyma of the lung.
* Pericardium
A protective layer of tissue enveloping the heart and the origins of many important blood vessels. The fibrous layer of the pericardium anchors the heart to surrounding tissue and prevents it from overfilling with blood. The serous layer prevents friction as the heart pumps.
* Peritoneal mesothelioma
Cancer of the peritoneum, which is the inside lining of the lower part of the chest.
* Peritoneum
Lining of the abdominal organs and cavity.
* Permissible Exposure Limit
A parameter used in assessment of workplace hazards.
* Phagocytosis
Process wherein a cell surrounds large particles and envelops them through the cell membrane.
* Photodynamic therapy
New cancer therapy. Patients are injected with a photosensitized chemical designed to be absorbed by the cancerous cells, not the healthy cells. The area is then irradiated with light that activates the chemical and causes the cancerous cells to die.
* Pleura
The thin covering that protects and cushions the lungs and chest cavity. The pleura is made up of two membrane (layers of tissue) that are separated by a small amount of fluid.
* Pleural Effusions
Collection of fluid in the pleural space between the lung and the chest wall.
* Pleural fluid
A serous fluid found within the pleural cavity between the parietal and visceral pleura
* Pleural mesothelioma
Cancer of the mesothelium lining around the lungs. The most common type of mesothelioma.
* Positron Emission Tomography
PET, or Positron Emission Tomography, is a procedure that produces powerful images of the body's biological functions and is being used more and more frequently in the treatment and monitoring of malignant diseases. Unlike conventional imaging, PET does not show the body's anatomy, rather it shows the chemical function or metabolism of an organ or tissue.
* Pneumonitis
Inflammation of the lung tissue which can lead to permanent scarring. One cause of pneumonitis is the inhalation of asbestos.
* Prognosis
A doctor’s opinion on the progression of a patient’s condition and chances for improvement/recovery.
* Proto oncogenes Genes that code for cell growth regulation and differentiation. They can lead to malignant tumors if they are mutated or over expressed.
* Radiation therapy
The use of high-energy rays or subatomic particles to treat disease. Types of radiation include x-ray, electron beam, alpha and beta particle, and gamma ray.
* Stroma
The non-functioning supportive framework of an organ. The mesothelium which lines the pleura, peritoneum, and pericardium can be considered stroma.
* Thoracentesis
Removal of fluid from the pleural cavity in the chest by inserting a needle into the chest. Used in diagnosis of mesothelioma.
* Thrombocytopenia
Thrombocytopenia is a reduced platelet (thrombocyte) count. It occurs when platelets are lost faster than they can be replaced. It can be caused by a failure in platelet production or a severe injury.
* Tomotherapy
A form of Intensity Modulated Radiation Therapy that integrates a CT Scan in the treatment to better target tumors and reduce radiation to healthy tissue. The scan allows greater precision for the radiation treatment by pinpointing tumor mass. Tomotherpy.
* Tumor Suppressor Gene
A gene that when activated can halt a cell’s cycle or encourage apoptosis reducing the probability that a damaged cell will evolve into a tumor cell.
* Video-Assisted Thoracoscopic Surgery
A technique used to diagnose and treat problems in the chest, which has found increasing use in mesothelioma diagnosis in recent years. The doctors inserts a fiber-optic camera (called a thorascope) into the chest.
Another name for peritoneal mesothelioma. Cancer of the lining of the abdominal cavity.
* Acute pain
Pain that comes on quickly and may be severe, but lasts a relatively short period of time.
* Adenocarcinoma
cancer that forms in the cells of glands or in parts of the body that produce mucous. Also called "nonsmall cell lung cancer". Tumors include cube or column-shaped cells found along the outer edges of the lungs and under the membrane lining of the bronchi.
* Adjuvant therapy
Chemotherapy drugs (including hormones) given after surgery or radiation or both to help prevent the cancer from coming back.
* Alopecia
Autoimmune disease occurring on areas of the body (most commonly the scalp) where a person’s immune system attacks hair follicles suppressing and arresting hair growth.
* Alveoli
Tiny structures inside the lungs responsible for pulmonary gas exchange. Asbestos fibers become lodged in these structures which may lead to scarring.
* Anemia
Having too few red blood cells. Common side effect of chemotherapy. Symptoms of anemia include feeling tired, weak, and short of breath.
* Angiogenesis
The formation of new blood vessels. Angiogenesis is essential for the growth of tumors. Tumor cells release chemicals to encourage blood vessel growth.
* Angiogenesis Inhibitor
A chemical which signals the process of angiogenesis to stop and thereby prevents the formation of blood vessels. In anticancer therapy, an angiogenesis inhibitor prevents the growth of blood vessels from surrounding tissue to a solid tumor.
* Antiangiogenesis
Prevention of the growth of new blood vessels. Drug designers use this strategy to try to slow tumor growth.
* Asbestos
A mineral fiber. Breathing high levels of asbestos fibers can lead to lung cancer.
* Ascites
An accumulation of fluid in the peritoneal cavity symptomatic of mesothelioma and also found in patients with cirrhosis.
* Biologic therapy
Treatment that stimulates the body's immune defense system to fight infection and disease. Also called immunotherapy. Some doctors consider this a type of chemotherapy, but it is usually classified as a separate type of treatment.
* Brachytherapy
One of the earliest forms of cancer treatment, brachytherapy involves the insertion of small tube-like seeds that contain a dose of radiation into or directly next to a tumor. This has largely been replaced by external radiation therapy but is still a common treatment for prostate cancer.
* Breakthrough pain
Pain that occurs in patients with chronic pain that is controlled by medications. The pain "breaks through" the normal control.
* Carcinogen
A substance that is known to cause cancer. Asbestos can be considered a carcinogen because it can cause mesothelioma. More about carcinogens.
* CAT scan
Computerized tomography - a diagnostic medical test that uses X-Rays to create a 3-dimensional image of part of the body. Also called CT scans.
* Chemotherapy
The use of anticancer drugs, generally administered through an IV, to treat cancer.
* Chronic pain
Pain that may range from mild to severe and persists or progresses over a long period of time.
* Clinical Trials
Medical studies designed to compare a well-known, or standard, treatment with a new or alternative treatment. Clinical trials are usually done in three phases. Phase I tests the safety of the treatment on a small number of patients. Phase II assesses the effectiveness of the treatment and usually involves a larger group of people. Phase III provides in-depth information about the effectiveness and safety, by comparing experimental treatment with the standard protocol. Phase III trials usually involve several thousand patients nationwide.
* Combination Chemotherapy
The use of more than one drug to treat cancer.
* Decortication
A surgical procedure involving the removal of the membrane or outer cover of an organ. The procedure is commonly performed on mesothelioma patients if the lung is constricted and cannot be totally inflated.
* Diagnostic
The use of skilled and scientific methods to establish the cause and nature of a disease.
* Double-Blind
Clinical trial in which participants do not know what treatment they are receiving. The doctors and nurses treating them don't know either. Researchers keep this information secret until each patient's health status is known, usually after at least a year or more of treatments.
* Dyspnea
Shortness of breath; difficulty breathing..
* Epidemiology
The study of a disease that is widespread and rapidly spreading.
* Epithelial Cells
One of the 4 main bodily tissues, they often compose the linings of organs and membranes as well as the skin. These cells line the insides of the lungs.
* Etiology
The science and study of the causes, origins and reasons of diseases and their mode of operation.
* Gene Therapy
A technique for modifying genes responsible for disease development. Still largely experimental.
* Immunotherapy
A treatment which activates the bodies own immune system to destroy disease. Treatment of disease by stimulating the body s own immune system. This is a type of therapy currently being researched as a treatment for cancer.
* Intensity Modulated Radiation Therapy (IMRT)
High-precision radiation therapy technique uses computer-controlled x-ray beams so that the radiation delivery conforms to the shape of the tumor. It does this by modulating-or controlling-the intensity of the radiation beam to focus a higher radiation dose to the tumor while minimizing radiation to surrounding healthy tissues.
* Laparoscope
A small telescoping rod inserted into the body during laparoscopy. It often contains an illuminating device and a camera to transmit images to the operating physician. It can also have a small component capable of removing tissue for sampling.
* Laparoscopy
A minimally invasive surgical procedure where small incisions are made in the abdominal area and a laparoscope is inserted into the body. Often used for biopsies it can also be used for minor surgeries.
* Macrophages
Cells that digest pathogens and cellular debris. When trying to digest inhaled asbestos fibers in the lungs, they often split open and their internal fluids then damage the alveoli. The damage is then multiplied as more macrophages try to digest the particle and eventually fibrosis may develop.
* Markers
Physiological indications of the presence of cancer. Mesothelioma is often diagnosed with the immunohistochemical markers.
* Mediastinoscopy
A surgical procedure to examine the inside of the upper chest between and in front of the lungs (also known as the mediastinum). During a mediastinoscopy, a thin scope (mediastinoscope) is inserted through a small incision. A tissue sample (biopsy) can be collected through the mediastinoscope and then examined.
* Mesothelin
A glycosylphosphatidylinositol-linked glycoprotein. A cell surface antigen. The biological function is not known, but the protein is expressed in large quantities in mesothelial cells, and in mesotheliomas and other cancers.
* Mesothelioma
A form of cancer where the primary tumor is on the mesothelium - the internal lining of body cavities. Mesothelioma is a carcinoma. It is called pleural mesothelioma when the pleural cavity is affected and peritoneal mesothelioma when the tumor is in the abdominal cavity. Most mesothelioma cases can be traced to inhalation of asbestos fibers.
* Mesothelium
Membrane that lines the pleura, peritoneum, and pericardium and produces lubricating fluids to allow the heart and lungs to glide against neighboring structures
* Metastasis/Metastasized
The spread of cancer cells to distant areas of the body through the lymph system or bloodstream.
* MRI
magnetic resonance imaging - a diagnostic medical test that uses magnetic fields to create a 3-dimensional image of part of the body.
* Multimodality therapy
* Oncogenesis
The development of cellular changes leading to the development of a malignant tumor
* Opioids
Powerful prescription medications that are administered to relieve severe pain. Common opioids are endorphin, fentanyl and methadone.
* Palliative
Treatment that is not expected to cure, but rather to slow down the progress of a disease and make the person comfortable and as happy as possible throughout the process.
* Paracentesis
Medical procedure that uses a needle remove/drain fluid accumulated in the abdominal cavity (peritoneal fluid). These fluid deposits are also called ascites.
Used in the diagnosis of mesothelioma.
* Parenchyma
The functional parts of an organ. For instance alveoli are part of the parenchyma of the lung.
* Pericardium
A protective layer of tissue enveloping the heart and the origins of many important blood vessels. The fibrous layer of the pericardium anchors the heart to surrounding tissue and prevents it from overfilling with blood. The serous layer prevents friction as the heart pumps.
* Peritoneal mesothelioma
Cancer of the peritoneum, which is the inside lining of the lower part of the chest.
* Peritoneum
Lining of the abdominal organs and cavity.
* Permissible Exposure Limit
A parameter used in assessment of workplace hazards.
* Phagocytosis
Process wherein a cell surrounds large particles and envelops them through the cell membrane.
* Photodynamic therapy
New cancer therapy. Patients are injected with a photosensitized chemical designed to be absorbed by the cancerous cells, not the healthy cells. The area is then irradiated with light that activates the chemical and causes the cancerous cells to die.
* Pleura
The thin covering that protects and cushions the lungs and chest cavity. The pleura is made up of two membrane (layers of tissue) that are separated by a small amount of fluid.
* Pleural Effusions
Collection of fluid in the pleural space between the lung and the chest wall.
* Pleural fluid
A serous fluid found within the pleural cavity between the parietal and visceral pleura
* Pleural mesothelioma
Cancer of the mesothelium lining around the lungs. The most common type of mesothelioma.
* Positron Emission Tomography
PET, or Positron Emission Tomography, is a procedure that produces powerful images of the body's biological functions and is being used more and more frequently in the treatment and monitoring of malignant diseases. Unlike conventional imaging, PET does not show the body's anatomy, rather it shows the chemical function or metabolism of an organ or tissue.
* Pneumonitis
Inflammation of the lung tissue which can lead to permanent scarring. One cause of pneumonitis is the inhalation of asbestos.
* Prognosis
A doctor’s opinion on the progression of a patient’s condition and chances for improvement/recovery.
* Proto oncogenes Genes that code for cell growth regulation and differentiation. They can lead to malignant tumors if they are mutated or over expressed.
* Radiation therapy
The use of high-energy rays or subatomic particles to treat disease. Types of radiation include x-ray, electron beam, alpha and beta particle, and gamma ray.
* Stroma
The non-functioning supportive framework of an organ. The mesothelium which lines the pleura, peritoneum, and pericardium can be considered stroma.
* Thoracentesis
Removal of fluid from the pleural cavity in the chest by inserting a needle into the chest. Used in diagnosis of mesothelioma.
* Thrombocytopenia
Thrombocytopenia is a reduced platelet (thrombocyte) count. It occurs when platelets are lost faster than they can be replaced. It can be caused by a failure in platelet production or a severe injury.
* Tomotherapy
A form of Intensity Modulated Radiation Therapy that integrates a CT Scan in the treatment to better target tumors and reduce radiation to healthy tissue. The scan allows greater precision for the radiation treatment by pinpointing tumor mass. Tomotherpy.
* Tumor Suppressor Gene
A gene that when activated can halt a cell’s cycle or encourage apoptosis reducing the probability that a damaged cell will evolve into a tumor cell.
* Video-Assisted Thoracoscopic Surgery
A technique used to diagnose and treat problems in the chest, which has found increasing use in mesothelioma diagnosis in recent years. The doctors inserts a fiber-optic camera (called a thorascope) into the chest.
PERITONEAL MESOTHELIOMA
Peritoneal mesothelioma, a cancer of the lining of the abdominal cavity, is less common than the pleural form, comprising approximately one-fifth to one-third of the total number of mesothelioma cases diagnosed. According to the SEER (Surveillance, Epidemiology, and End Results) database, these diagnoses are approximately 54.7 per cent male versus 45.3 per cent female, with the median age being 65-69. The latency period appears to be shorter for asbestos-exposed individuals with symptoms appearing 20-30 years after exposure rather than the 30-40 year latency more commonly associated with pleural mesothelioma.
Symptoms
Clinical symptoms at the time of presentation may include abdominal pain, abdominal mass, increased abdominal girth, distention of the abdomen, ascites (fluid in the abdomen), fever, weight loss, fatigue, anemia and digestive disturbances. Some patients complain of more non-specific symptoms for a number of months prior to a confirmed diagnosis. In a percentage of cases, peritoneal mesothelioma is found incidentally when the patient has sought help for another health problem such as gallbladder, hernia or pelvic mass.
Diagnosis
As with all mesotheliomas, the diagnosis of peritoneal mesothelioma can be challenging. CT findings may help differentiate between the two clinical types of peritoneal mesothelioma, termed “dry” or “wet”, since their appearances are very different upon imaging. In the “dry” type, CT may reveal multiple small masses or a single dominant localized mass. There is normally little or no ascites. In the “wet” type, CT may reveal widespread small nodules, but no dominant mass. Ascites is usually present.
If fluid is present, it may be removed in a procedure called paracentesis. Unfortunately, as is the case with pleural mesothelioma, fluid analysis offers limited diagnostic value. It is normally a tissue biopsy obtained in a laproscopic exploratory that will yield a definitive diagnosis.
Staging
There is currently no established staging system for peritoneal mesothelioma, and if the disease is staged, it is normally done in accordance with the TNM system, the most common general cancer staging system. This system refers to the status of the tumor (T), lymph nodes (N) and metastases (M). There are general categories which may also be somewhat helpful in determining stage.
The first category shows a localized lesion able to be completely resected (entirely removed). In the second category, the disease is contained within the abdominal cavity on peritoneal and organ surfaces where debulking (the removal of as much, but not all of the tumor) is possible. Category three shows disease contained within the abdominal cavity with invasion of organs such as the colon or liver. Category four shows disease extending outside the abdominal cavity.
Treatment
In recent years, multimodality treatment of peritoneal mesothelioma has become more common for a select patient population, since surgery alone and/or intraperitoneal chemotherapy alone have proven to be similarly ineffective. Cytoreductive (debulking) surgery involves the removal of all or nearly all visible tumor, and, depending on the physician’s choice, may be combined with Intra-Peritoneal Hyperthermic Chemotherapy (IPHC), intraperitoneal chemotherapy and/or radiation. Dr. Paul Sugarbaker has written "intraperitoneal chemotherapy gives high response rates within the abdomen because the peritoneal space to plasma barrier provides dose intensive therapy." Since it is not always possible to remove all tumors, the prognosis for long-term survival may be based on the completeness of cytoreduction as established by the following criteria:
Complete cytoreduction:
CC-0 No peritoneal seeding is visualized within the operative fields.
CC-1 Nodules of less than 2.5 cm persist after cytoreduction. Nodules of this size are thought to be penetrable by intracavitary chemotherapy, therefore cytoreduction is termed complete.
Imcomplete cytoreduction:
CC-2 Nodules of between 2.5 and 5 cm persist after cytoreduction.
CC-3 Nodules of greater than 5 cm or a merging of unresectable tumor nodules at any site within the abdomen or pelvis.
For patients found to have widespread disease, where surgery is not looked at as “potentially curative”, palliation of symptoms may be accomplished by debulking. Since peritoneal mesothelioma is a rare malignancy, specialized treatments should be conducted by doctors familiar with the disease.
Symptoms
Clinical symptoms at the time of presentation may include abdominal pain, abdominal mass, increased abdominal girth, distention of the abdomen, ascites (fluid in the abdomen), fever, weight loss, fatigue, anemia and digestive disturbances. Some patients complain of more non-specific symptoms for a number of months prior to a confirmed diagnosis. In a percentage of cases, peritoneal mesothelioma is found incidentally when the patient has sought help for another health problem such as gallbladder, hernia or pelvic mass.
Diagnosis
As with all mesotheliomas, the diagnosis of peritoneal mesothelioma can be challenging. CT findings may help differentiate between the two clinical types of peritoneal mesothelioma, termed “dry” or “wet”, since their appearances are very different upon imaging. In the “dry” type, CT may reveal multiple small masses or a single dominant localized mass. There is normally little or no ascites. In the “wet” type, CT may reveal widespread small nodules, but no dominant mass. Ascites is usually present.
If fluid is present, it may be removed in a procedure called paracentesis. Unfortunately, as is the case with pleural mesothelioma, fluid analysis offers limited diagnostic value. It is normally a tissue biopsy obtained in a laproscopic exploratory that will yield a definitive diagnosis.
Staging
There is currently no established staging system for peritoneal mesothelioma, and if the disease is staged, it is normally done in accordance with the TNM system, the most common general cancer staging system. This system refers to the status of the tumor (T), lymph nodes (N) and metastases (M). There are general categories which may also be somewhat helpful in determining stage.
The first category shows a localized lesion able to be completely resected (entirely removed). In the second category, the disease is contained within the abdominal cavity on peritoneal and organ surfaces where debulking (the removal of as much, but not all of the tumor) is possible. Category three shows disease contained within the abdominal cavity with invasion of organs such as the colon or liver. Category four shows disease extending outside the abdominal cavity.
Treatment
In recent years, multimodality treatment of peritoneal mesothelioma has become more common for a select patient population, since surgery alone and/or intraperitoneal chemotherapy alone have proven to be similarly ineffective. Cytoreductive (debulking) surgery involves the removal of all or nearly all visible tumor, and, depending on the physician’s choice, may be combined with Intra-Peritoneal Hyperthermic Chemotherapy (IPHC), intraperitoneal chemotherapy and/or radiation. Dr. Paul Sugarbaker has written "intraperitoneal chemotherapy gives high response rates within the abdomen because the peritoneal space to plasma barrier provides dose intensive therapy." Since it is not always possible to remove all tumors, the prognosis for long-term survival may be based on the completeness of cytoreduction as established by the following criteria:
Complete cytoreduction:
CC-0 No peritoneal seeding is visualized within the operative fields.
CC-1 Nodules of less than 2.5 cm persist after cytoreduction. Nodules of this size are thought to be penetrable by intracavitary chemotherapy, therefore cytoreduction is termed complete.
Imcomplete cytoreduction:
CC-2 Nodules of between 2.5 and 5 cm persist after cytoreduction.
CC-3 Nodules of greater than 5 cm or a merging of unresectable tumor nodules at any site within the abdomen or pelvis.
For patients found to have widespread disease, where surgery is not looked at as “potentially curative”, palliation of symptoms may be accomplished by debulking. Since peritoneal mesothelioma is a rare malignancy, specialized treatments should be conducted by doctors familiar with the disease.
Worldwide Cancer Rates on the Rise
Cancer is predicted to rise worldwide mainly due to the increase of tobacco use and more "Westernized" habits in developing countries. By the year 2030 cancer is expected to more than double and in 2010 it is predicted to be the world's largest killer.
The International Agency for Research on Cancer has completed a report that examines the impact this increase will have on the entire globe.
The report's findings are disturbing and include an increase in cancer cases to 27 million and an increase in cancer deaths to 17 million. China, Russia and India are expected to have the highest rate of increase of cancer incidence and deaths and the overall global increase is expected to be 1% per year. The report also points to tobacco use and obesity as the leading causes of cancer in poorer countries in the years to come.
The United States has had a reduction in cancer incidence and death over the past ten years and this fact highlights the growing need for developing countries to begin the same process.
Peter Boyle, MD and IARC Director said, "Forty years ago, cancer was primarily a disease of high-resource, industrialized countries," Boyle says. "That isn't true anymore. When we think of low-resource countries, we think of communicable diseases as the big killers. But each year more people across the globe die of cancer than die of AIDS, tuberculosis, and malaria combined."
Boyle also noted that just 15% of all cancer cases occurred in developing countries in 1970, but today more than half of the world's cancer deaths occur there.
These horrific rates are expected to rise mainly due to the widespread increase in smoking. Boyle said the increase in smoking normally takes decades to affect rates of lung cancer and emphysema.
"The big tobacco companies started to move pretty strongly into these low- and medium-resource countries in the early 1990s at about the same time that we were working very aggressively to reduce tobacco use in Western countries," he says
Both breast cancer and cervical cancer rates are also on the rise in poorer countries.
In addition to these findings other significant increases in cancer are occurring in various countries around the world.
Due to these overwhelming new discoveries, the American Cancer Society has reached out to the new Congress and the incoming Obama administration for help.
The International Agency for Research on Cancer has completed a report that examines the impact this increase will have on the entire globe.
The report's findings are disturbing and include an increase in cancer cases to 27 million and an increase in cancer deaths to 17 million. China, Russia and India are expected to have the highest rate of increase of cancer incidence and deaths and the overall global increase is expected to be 1% per year. The report also points to tobacco use and obesity as the leading causes of cancer in poorer countries in the years to come.
The United States has had a reduction in cancer incidence and death over the past ten years and this fact highlights the growing need for developing countries to begin the same process.
Peter Boyle, MD and IARC Director said, "Forty years ago, cancer was primarily a disease of high-resource, industrialized countries," Boyle says. "That isn't true anymore. When we think of low-resource countries, we think of communicable diseases as the big killers. But each year more people across the globe die of cancer than die of AIDS, tuberculosis, and malaria combined."
Boyle also noted that just 15% of all cancer cases occurred in developing countries in 1970, but today more than half of the world's cancer deaths occur there.
These horrific rates are expected to rise mainly due to the widespread increase in smoking. Boyle said the increase in smoking normally takes decades to affect rates of lung cancer and emphysema.
"The big tobacco companies started to move pretty strongly into these low- and medium-resource countries in the early 1990s at about the same time that we were working very aggressively to reduce tobacco use in Western countries," he says
Both breast cancer and cervical cancer rates are also on the rise in poorer countries.
In addition to these findings other significant increases in cancer are occurring in various countries around the world.
Due to these overwhelming new discoveries, the American Cancer Society has reached out to the new Congress and the incoming Obama administration for help.
Minnesota woman calls herself poster child for hope after mesothelioma
Roseville, MN - One Roseville woman has dubbed herself "the poster child for hope after meso[thelioma]", and she has the background to back it up.
Heather Von St. James, 39, has been living for almost three years since she was diagnosed with mesothelioma, the life-threatening lung cancer caused by exposure to asbestos. The average life expectancy of those who suffer from the disease ranges typically from 12 to 18 months.
She thinks she was exposed to the hazardous substance as a child. Her father was a construction laborer who worked with many asbestos-containing products. She said she used to put on his work clothes at times, not knowing that they were covered with asbestos.
Mrs. Von St. James was diagnosed with the cancer in November 2005, a few months after she gave birth to her now 3-year old daughter, Lily. When she returned to work on a part-time basis in August, she started feeling more tired than normal but thought it had to do with being a new mom. However, in October she reported feeling very heavy breathing.
A doctor's office visit resulted in the discovery of fluid in one of her lungs, which led to her going to United Hospital in St. Paul to get the fluid drained. After a series of tests, the doctor told her she had developed mesothelioma and presented her with several options.
If she left the cancer alone, she would probably live for only 15 more months. Radiation and chemotherapy would extend that to about five years. The last option was to undergo a radical surgical process which could possibly save her life. She chose the third.
In early February 2006, Mrs. Von St. James underwent the surgery which consisted of removing her left lung, one of her ribs, half of her diaphragm, the lining around her heart and a few lymph nodes. She spent the next three months recovering and in May, she began chemotherapy treatments. Today, she no longer has any traces of the mesothelioma in her body and is optimistic that it won't return.
taken from http://www.mesotheliomaweb.org
Heather Von St. James, 39, has been living for almost three years since she was diagnosed with mesothelioma, the life-threatening lung cancer caused by exposure to asbestos. The average life expectancy of those who suffer from the disease ranges typically from 12 to 18 months.
She thinks she was exposed to the hazardous substance as a child. Her father was a construction laborer who worked with many asbestos-containing products. She said she used to put on his work clothes at times, not knowing that they were covered with asbestos.
Mrs. Von St. James was diagnosed with the cancer in November 2005, a few months after she gave birth to her now 3-year old daughter, Lily. When she returned to work on a part-time basis in August, she started feeling more tired than normal but thought it had to do with being a new mom. However, in October she reported feeling very heavy breathing.
A doctor's office visit resulted in the discovery of fluid in one of her lungs, which led to her going to United Hospital in St. Paul to get the fluid drained. After a series of tests, the doctor told her she had developed mesothelioma and presented her with several options.
If she left the cancer alone, she would probably live for only 15 more months. Radiation and chemotherapy would extend that to about five years. The last option was to undergo a radical surgical process which could possibly save her life. She chose the third.
In early February 2006, Mrs. Von St. James underwent the surgery which consisted of removing her left lung, one of her ribs, half of her diaphragm, the lining around her heart and a few lymph nodes. She spent the next three months recovering and in May, she began chemotherapy treatments. Today, she no longer has any traces of the mesothelioma in her body and is optimistic that it won't return.
taken from http://www.mesotheliomaweb.org
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