Mesothelioma Types

Posted: Aug 27, 2010 |Comments: 0 |

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Mesothelioma Types
Mesothelioma can be categorized generally into two types according to the type of cancerous cells. These are malignant mesothelioma and benign mesothelioma. The former is the more dangerous one as it spreads to other body parts while the latter one is a non cancerous condition.

Malignant mesothelioma
Malignant mesothelioma is further classified into four types on the basis of the site of cancer. As the major cause of mesothelioma is asbestos exposure, once asbestos enters the body it can affect different organs including the throat, lungs, stomach, heart and testicles. Thus the main types of malignant mesothelioma are:
•    Pleural mesothelioma
•    Peritoneal mesothelioma
•    Pericardial mesothelioma
•    Testicular mesothelioma

1)    Pleural mesothelioma
This type of mesothelioma arises in the lung pleura, where the mesothelial lining of the lungs are affected. It is the most common type of mesothelioma that people suffer from. It comprises of up to 75 per cent cases that are diagnosed as mesothelioma.

2)    Peritoneal mesothelioma
It is the second most common type of mesothelioma which totals 20 per cent of the mesothelioma cases. The asbestos affects the mesothelial lining of the peritoneal or the abdominal cavity and causes cancer cells to develop here.

3)    Pericardial mesothelioma
This type of mesothelioma affects 5% of all the mesothelioma patients. The pericardial lining of the heart called the pericardium is affected by the asbestos and develops cancer.

4)    Testicular mesothelioma
The site of cancer is the tunica vaginalis of the testicles and is the least common type of mesothelioma. This is a rare mesothelioma which only affects the male population.
The types of malignant tumor or cancer cells involved in the development of mesothelioma are of three main types namely Epithelioid, Sarcomatoid and Mixed or biphasic cells.
The epitheliod is the most common one accounting for 50 to 70 percent cases but have the best possibility of survival. The affected areas include the covering surrounding the internal organs and internal surfaces in the body.

The other type is Sarcomatoid which is much more serious than the epitheliod, and it affects the secondary tissues including the bone, muscles, cartilage or fat. This type of cancer cell is a much more rare type that occurs in 7-20% of the cases.
Mixed/biphasic refers to both types of cancers that occurs simultaneously, and making up the rest of the 20-35% of the mesothelioma cases that are reported.

Benign mesothelioma
This type of mesothelioma is the non cancerous form of the mesothelioma and is rare. Recently it was referred to as the "solitary fibrous tumor." It is not a cancer itself but can develop into cancerous forms.
The benign mesothelioma can occur in the pleura or the peritoneum.  This usually starts in the sub mesothelium layer that lies beneath the mesothelium of either the pleura or the peritoneum.     
This form of mesothelioma also affects the males more than the female population.
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    Maryam Zaidi

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    By: Maryam Zaidil Healthl Apr 24, 2011

    all about symptoms of pericardial mesothelioma, asbestos, maligant mesothelioma, Pericardial mesothelioma. just grab it.

    By: Deepesh Ramtekel Health> Diseases and Conditionsl Jul 29, 2011
    Cates Law

    Mesothelioma is a deadly form of cancer that affects the mesothelium, the protective lining which covers the body's internal organs. Mesothelioma diagnoses average approximately 2,500 to 3,000 new cases a year.

    By: Cates Lawl Health> Men's Healthl Sep 21, 2011
    Mohd Izahan

    The mesothelioma is the thin lining on the surface of the body cavities and the organs that are contained within them.

    By: Mohd Izahanl Health> Cancerl Dec 12, 2009

    Malignant mesothelioma is an asbestos cancer form that has an impact on the thin tissue layer that is there in the internal organs of the body, commonly known as mesothelium. The main reason responsible for malignant mesothelioma is asbestos exposure.

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    Mesothelioma is a rare cancer that originates in the mesothelium. The mesothelium is the protective lining that covers the body's internal organs. Mesothelioma occurs when the mesothelium cells start to divide uncontrollably.

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