What is mesothelioma?
Mesothelioma is a rare form of cancer in which cancerous cells are found in the mesothelium, a protective sac that covers most of the body's internal organs. There are two main types of mesothelioma - pleural which involves the sac that covers the pleural cavity around the lungs and peritoneal which involves the tissue that covers the abdominal area.
What causes mesothelioma?
The only accepted cause is exposure to asbestos. Asbestos was in thousands of different products so many people were exposed at many times in their lives.
Mesothelioma Cancer
Malignant mesothelioma is the most serious of all asbestos-related diseases. Although uncommon, mesothelioma cancer is no longer considered rare. The primary cause and risk factor for mesothelioma is exposure to asbestos.Making a correct mesothelioma diagnosis is particularly difficult for doctors because the disease often presents with symptoms that mimic other common ailments. There is no known cure for mesothelioma, but treatments such as surgery and chemotherapy have helped to improve the typical mesothelioma prognosis.Pleural mesothelioma (affecting the lung’s protective lining in the chest cavity) represents about three quarters of all mesothelioma incidence. Peritoneal mesothelioma which affects the abdominal cavity and pericardial mesothelioma, which affects the cardiac cavity, comprise the remainder. Testicular mesothelioma is extremely rare and is typically presents with metastases of the peritoneal variety. There are three recognized mesothelioma cell-types. Between 50 and 70% of all mesotheliomas are of the epithelial variety. While prognosis is generally poor, it is considered less aggressive than sarcomatoid mesothelioma and biphasic mesothelioma, which comprise the remainder of cell type diagnoses.
The cavities within the body encompassing the chest, abdomen, and heart are surround by a membrane of cells known as the mesothelium. Mesothelial cells assist in general organ functions. The mesothelium is particularly important to organs that are commonly in motion, such as expansion or contraction of the lungs, stomach, or heart. Lubrication from the mesothelial cells allows free range of motion within the body. The mesothelium of the chest, abdomen, and cardiac cavity are called the pleura, the peritoneum, and the pericardium, respectively. Each of these groupings of mesothelial cells are extremely critical to the functions of the body structures which they encompass.Malignancies (cancerous tumors) occurring within the mesothelial membranes are known as malignant mesothelioma, or simply mesothelioma. Benign tumors of the mesothelium are known to occur, but are much rarer than the more common malignant cancer.While tumors of the mesothelium were first recognized in the late 18th century, it was not until the middle of the 20th century that this particular cancer was studied and examined with more detail. It was at this time where suspicions of the cancer’s causal relationship with asbestos exposure became more substantiated. A joint research venture through the Department of Thoracic Surgery at the University of the Witswater and/Johannesburg General Hospital in South Africa provided the most compelling evidence of the nexus between asbestos exposure and the development of pleural mesothelioma.
Incidence of mesothelioma is still quite rare, with only 2,500-3000 diagnoses in the United States each year. There was a spike in reported diagnoses between 1970 and 1984, which has been attributed to the latency period between diagnosis and the height of industrial exposures, which occurred roughly 40-60 years prior to this time. Exposure was common in nearly all industries but was particularly common in the WWII-era military industrial cycle, including Navy Shipyards.Although this cancer is much more common in men over the age of 60 (largely attributed to the industrial exposures within male-dominated industries), mesothelioma in women and children has been described as well. Mesothelioma causes for diagnosis in women and children are mainly attributed to secondary exposure to asbestos, as it was not uncommon for men to bring asbestos back into the home on their body or clothing if proper cleaning facilities were not available on site.
Mesothelioma is diagnosed through a comprehensive combination of biopsy and imaging scans.Mesothelioma can be a difficult malignancy to diagnose because the symptoms and pathology of the disease closely resemble other respiratory conditions. For this reason, misdiagnosis is not uncommon in mesothelioma patients. Symptoms of mesothelioma include chest pain, chronic cough, effusions of the chest and abdomen, and the presence of blood in lung fluid.
Diagnostic surgeries, including a biopsy, will typically be required to determine the type of malignant cells that are present in the body. Typically a body imaging scan, including a magnetic resonance image (MRI) or computer topography (CT scan) will be required to determine the extent and location of the disease.
Mesothelioma patients are generally referred by their personal physicians to one of the many renowned mesothelioma doctors in the United States. These oncologists are well versed in the disease behavior and pathology and are the most familiar with cutting-edge mesothelioma treatment options. Dr. David Sugarbaker of the Brigham and Women's Hospital, an extension of Harvard University and the Dana Farber Cancer Institute in Boston, MA, is at the forefront of mesothelioma treatment through the International Mesothelioma Program.
While mesothelioma is typically advanced at diagnosis, treatment options are available.
Mesothelioma, while certainly an aggressive disease, is a manageable malignancy. While there is no cure for the cancer, mesothelioma treatment options including surgery, chemotherapy, and radiation therapy are available for many patients. While a combination of Alimta® and Cisplatin is currently the only FDA approved chemotherapy regimen, several clinical trials are currently in progress utilizing other drugs including Gemcitabine and Onconase, with many showing dramatically improved results in certain cancer patients.
Radiation therapy is also utilized, but typically in conjunction with other treatment methods like surgery and chemotherapy. Surgical resection of mesothelioma is possible in early-stage-diagnosed patients. Aggressive surgeries such as extrapleural pneumonectomy can extend survival rates far beyond previously-thought timeframes. Diagnostic and palliative surgeries such as pleurocentesis and pleurodesis are also common in patients of malignant mesothelioma cancer.
Alternative therapies have also been used effectively by many mesothelioma patients to assist in managing symptoms of the disease and conventional treatments. These treatments are mainly preferential but can be extremely valuable to many patients.Mesothelioma is caused by exposure to asbestos.
Mesothelioma is only caused by exposure to asbestos, though cases have been documented in children or other individuals with no asbestos history. Asbestos is a microscopic and naturally-occurring mineral that lodges in the pleural lining of the lungs and the peritoneal lining of the abdominal cavity. In most cases, several years will pass (up to 60) before mesothelioma develops in those who had been exposed to asbestos.
In many cases, those individuals diagnosed with mesothelioma that have been known to be exposed to asbestos may be eligible for financial compensation from asbestos manufacturers for their illness. Those who have been diagnosed with mesothelioma and were exposed to asbestos should fill out the brief form on this page. We'll rush you a complimentary mesothelioma and asbestos exposure information kit detailing new mesothelioma treatments, active clinical trials, top doctors, as well as how to obtain compensation for asbestos-related health conditions like mesothelioma.
Veterans and Mesothelioma
During the better part of the 20th century, the United States Armed Forces used asbestos in the production of many types of ships, buildings and vehicles, thus exposing countless soldiers and workers to this terrible mineral. At its peak, asbestos was used predominantly in factories during World War II and many U.S. veterans suffered from mesothelioma as a result, because the harmful effects of asbestos were not known until decades later. Even now, as asbestos use and production has declined significantly, many veterans could still be afflicted, unaware of the early symptoms of mesothelioma cancer.
The Mesothelioma Resource Online offers a comprehensive list of American naval vessels and military ships that were produced using asbestos, as well as a state-by-state directory of Veterans Affairs center and hospitals to assist service men and women who are suffering from mesothelioma.
Treatment of Mesothelioma
Because of mesothelioma’s great latency period, treating mesothelioma is difficult, but there is hope in recent research and clinical trials. Current medical treatment options include chemotherapy, radiation, and surgery, and most patients choose to undergo a combination of these processes in order to increase their life expectancy. But survivors of mesothelioma have shown that treatment goes beyond hospitals, and that prognosis can be better for patients through healthy dieting, regular exercise and a variety of alternative therapies. Additionally, experimental treatments are available to individual patients depending on their stage progression.
How does one survive mesothelioma?
Treatment options include standard therapies (surgery and/or chemotherapy and/or radiation), clinical trials, and alternative or complimentary therapies. Despite the depressing information on the internet, there are long-term mesothelioma survivors including: Paul Kraus, Stephen Jay Gould, Rhio O'Connor, and others. Paul Kraus's book explains what he did to survive his mesothelioma.