Mesothelioma is a sort of lung cancer that is caused exclusively by exposure to asbestos.  Doctors usually divide the progression of cancer into 4 stages based mostly on how far the carcinoma has spread.  The four mesothelioma stages are like this :

Stage I
In Stage I, the mesothelioma is confined to the side of the body.  At this stage, it is typically limited to the pleura.  The two pleura form a surface that surrounds the lung, and are separated by a layer of lubricating fluid.  Mesothelioma in the pleura causes them to make more of this liquid than they want. 

On rare occasions, Stage I mesothelioma may involve the lung itself, the pericardium ( the membrane that surrounds the heart ), or the diaphragm ( the muscle that separates the stomach from the chest ). 

Stage II
In stage II, the mesothelioma has spread.  It now involves the chest wall, the esophagus ( which connects the mouth to the belly ), or the heart.  It may affect the pleura on both sides of the body.  It may also have an effect on the chest’s lymph nodes ( part of the immune reaction that works to clear out foreign particles ). 

Stage III
In stage III, the mesothelioma has spread further.  It is now beyond the diaphragm and in the peritoneum ( the surface that surrounds the intestinal cavity ).  It may also affect lymph nodes outside the chest. 

Stage IV
In the last of the mesothelioma stages, the malignancy has gone through spreading, that is, it has gone thru the blood vessels to spread to the organs a great distance away from the chest and stomach. 

Symptoms due to mesothelioma depend on where it has spread to.  If it is confined to a lung ( as is typical of early mesothelioma stages ), it can cause dry coughing and loss of breath.  If it has spread to the peritoneum, it can cause fever, swelling, and bowel or urinary Problems.  In the final stages, it may cause difficulty swallowing, sudden weight reduction, or puking blood.swallowing, sudden weight loss, or vomiting blood.

*Please note: Information in this article is provided for informational purposes only and is not a substitute for professional medical advice. You should consult a physician in all matters relating to your health.

Article By John Black

http://fitnesshealthbuzz.com