Mesothelioma definition  in common

1 A type of cancer caused  exposure to asbestos.
 This cancer is usually considered a tumor of the pleura and not a type of lung cancer.

2  A malignant tumor covering the lining of the lung and often associated with asbestos exposure.
3 A tumor or tumors affecting the lining of the chest or abdomen.
4 A malignant tumor of mesothelium caused by the inhalation of asbestos
5 A tumor in the lining of the lungs. Mesothelioma is linked almost exclusively to asbestos exposure

 

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Malignant Mesothelioma  three types

1    

The first type of malignant mesothelioma is called pleural mesothelioma or pleural mesothelioma of the. This is the most common type of mesothelioma, about 75% of all mesothelioma cases are caused by this type. Pleura is a thin serous membrane is found between the lungs and chest cavity which provides a lubricated surface prevents the lungs from rubbing against the chest wall. It also serves as a protective wall.

2     

The second type of mesothelioma is Peritoneal Mesothelioma, otherwise known as mesothelioma of the peritoneum. The peritoneum is a thin serous membrane that encloses the abdominal organs. Peritoneal Mesothelioma is a form or type of malignant mesothelioma cancer is rare. This disease accounts for about 10% to 20% of all mesothelioma cases. These tend to be more invasive form of cancer, patients who have been diagnosed with this disease have a shorter life expectancy than if they were diagnosed with Pleural Mesothelioma.

3

The third types of mesothelioma is pericardial mesothelioma or better known as mesothelioma of the pericardium. This species is a common type of mesothelioma and this type accounted for less than 10% of all mesothelioma cases. Pericardium (heart sac) is a serious membrane that surrounds and protects the heart.

Mesothelioma definition :

•    Cancer involving the pleura (the membranes that cover the lungs).
•    A cancer of the lining of the lungs, chest and stomach caused by inhalation of asbestos dust and fibers or asbestos exposure
•    A cancer of cells similar to those forming the lining of the lungs, heart, the abdominal cavity and its organs.
•    A malignant tumor covering the lining of the lung and often associated with asbestos exposure.
•    A tumor or tumors affecting the lining of the chest or abdomen.
•    A malignant tumor of mesothelium caused by the inhalation of asbestos
•    A tumor in the lining of the lungs. Mesothelioma is linked almost exclusively to asbestos exposure.

 

 Malignant Mesothelioma types  

§       The first type of malignant mesothelioma is called pleural mesothelioma or pleural mesothelioma of the. This is the most common type of mesothelioma, about 75% of all mesothelioma cases are caused by this type. Pleura is a thin serous membrane is found between the lungs and chest cavity which provides a lubricated surface prevents the lungs from rubbing against the chest wall. It also serves as a protective wall.

§       The second type of mesothelioma is Peritoneal Mesothelioma, otherwise known as mesothelioma of the peritoneum. The peritoneum is a thin serous membrane that encloses the abdominal organs. Peritoneal Mesothelioma is a form or type of malignant mesothelioma cancer is rare. This disease accounts for about 10% to 20% of all mesothelioma cases. These tend to be more invasive form of cancer, patients who have been diagnosed with this disease have a shorter life expectancy than if they were diagnosed with Pleural Mesothelioma.

§    The third types of mesothelioma is pericardial mesothelioma or better known as mesothelioma of the pericardium. This species is a common type of mesothelioma and this type accounted for less than 10% of all mesothelioma cases. Pericardium (heart sac) is a serous membrane that surrounds and protects the heart.

 

Cause
The main cause of malignant mesothelioma of the visceral pleural is Asbestos. The period between exposure to asbestos and the onset of symptoms is approximately 20 to 50 years. Because of this late onset, it occurs most often in later years of life. It also occurs more frequently in men than in women.

Doctors usually make an incision through the chest wall and insert an instrument called a thora coscope between two ribs to see the area. The doctor will then perform a biopsy to select a sample of tissue can be analyzed under a microscope.

Mesothelioma Stages

§  Stage I: Cancer is found in the lining of the chest cavity near the lung and the diaphragm or the heart or lungs.

§  Stage II: Cancer has spread beyond the chest lining to lymph nodes in the chest.

§  Stage III: Cancer has spread to the chest wall, center of the chest, heart, through the diaphragm, or stomach lining, and in some cases into nearby lymph nodes.

§  Stage IV: Cancer has spread to distant organs or tissues.

Radiation and radiotherapy are used in situations where the cancer is localized at the origin. Chemotherapy is used in more advanced stages of malignant mesothelioma.
surgery plus hyperthermia (heated) chemotherapy improves survival and quality of life for patients with peritoneal metastases (tumors involving the stomach lining).
Surgery is an option that is used for Stage I malignant mesothelioma. For stage II to IV, treatment with surgery are still evolving.