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Baca juga : Who Gets Mesothelioma?
Mesothelioma is a rare type of cancer that occurs in the lining of the body's internal organs, a thin layer of cells known as the mesothelium. While very thin, this layer of cells is vitally important to organ function and the health of the inner body structures. There are three recognized types of mesothelioma. Pleural mesothelioma occurs in the pleural lining of the lungs and is the most common form of the disease.
Peritoneal mesothelioma occurs within the peritoneum, which lines the abdominal cavity and is the second most common form of the disease. Pericardial mesothelioma is the rarest variety of the disease and occurs in the pericardial lining of the heart. The primary cause of mesothelioma is exposure to asbestos, though other factors, such as smoking may increase the likeliness of the disease in certain individuals.
About the Disease
Simply put, mesothelioma which is commonly referred to as asbestos cancer, is an aggressive cancer caused primarily by the inhalation of dangerous asbestos fibers. The disease attacks the mesothelium, a protective, two-layered membrane that covers the internal organs of the body including the lungs, heart and abdominal organs. Between these layers, the cells produce fluid, which allows easy movement of the heart and lungs within the chest cavity.
The layer that covers the lungs is called the pleura, and the layer that covers the heart is called the pericardium. The peritoneum lines the abdominal cavity. Mesothelium also lines the male and female reproductive organs. Mesothelioma can affect any of these cells, but is usually seen in the pleural or peritoneal mesothelium. The most commonly diagnosed form of this cancer is pleural mesothelioma.
Mesothelioma takes anywhere from 20 to 50 years to develop, which is why older individuals are usually the victims. However, recent cases involving September 11th World Trade Center first responders and clean-up crews show that high concentrations of asbestos can cause the disease to develop much more rapidly. A few WTC workers have already died of the disease.
Effects of the Disease
The invasion of the mesothelium by cancer cells makes it very difficult for the patient to breathe, resulting in the need for oxygen, especially as the disease progresses. Those with the pleural form of mesothelioma may also suffer from pleural effusions. These effusions prevent the smooth movement of the lungs and other organs in the chest.
Peritoneal mesothelioma also affects the stomach area and abdominal cavity, causing nausea, vomiting, or loss of appetite, which can result in dangerous weight loss. In addition to breathing difficulties and loss of appetite, mesothelioma victims also complain of excessive coughing, sleeping difficulties, persistent chest pain, fever, and pain in the lower back.
Mesothelioma, in general, is a very painful disease and because it is usually not diagnosed until it's in an advanced stage. For this reason, the symptoms are typically quite serious. Late diagnosis also means that the cancer is more likely to have metastasized, or spread, making successful mesothelioma treatment even more difficult.
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