Mesothelioma Tissue - Risk Factors - Type Of Cancer Diagnosis

Mesothelioma is a rare type of cancer , with about 2,000 cases diagnosed in the U.S. annually. The incidence in the general population is 15 cases per 1 million men and 2 cases per 1 million women. In Britain and Germany the incidence is 1.25 cases / 100,000 inhabitants / year and 1.1 respectively cases/100000 inhabitants / year. Ratio M / F is 8:1 , male predominance is explained by occupational exposure ( 65-94 % of patients) , while in women the exposure is mainly due to domestic environment ( 6-35 % ), especially occupational exposure to asbestos. The risk increases with age . The biggest risk factor for developing the disease is occupational exposure to asbestos, the responasbil for 70-80 % of cases. This can happen in buildings with asbestos-based material in factories that produce this material in me sites . Asbestos is a material with important physical properties used in thermal insulation of buildings housing the ceilings , cement and even in some parts of vehicles.

The average age of diagnosis of the disease is about 60 years, most patients were men who worked in construction, shipyards , railways , mining and automobile industries . Because asbestos dust can wear clothes and carry unwittingly expose these workers and their families at risk of developing pleural mesothelioma .

Before exposure to known risk azebest miners and people who were exposed to asbestos working without protective equipment . Since 1970 , Protection and Health Administration U.S. Occupational ( OSHA ) imposed limits on exposure to asbestos and providing protective equipment at work .

80 % of pleural mesothelioma cases occur in people who were exposed to asbestos , however, only 10% of people with a history of asbestos exposure develop the disease increased . This suggests that the additional exposure or other factors are involved in the development of the disease . Even more surprising is that 50 % HP teeth people with pleural mesothelioma have a history of asbestos exposure.

 Pleural Mesothelioma is detected in the 20-40 years of exposure to asbestos. This exposure has taken place, usually for a period of time, but has been reported as having life of 1-2 months .Although a very high number of patients and a long history of smoking, experts are reluctant to criminalize smoking in the appearance of this particular type of cancer.

Malignant mesothelioma has been correlated with the development of medical imaging investigations or radiotherapy application ( for treating other types of cancer ) . Also , scientists have recently suggested the existence of a correlation between exposure to simian virus 40 and the subsequent development of cancer . However, studies tend to present as a carcinogenic virus and not as an agent capable of inducing this neoplasia through individual action .

The incidence of mesothelioma varies in different parts of the world , according to the period in which asbestos was used widely in the area . Rates are high in the UK, which recorded 1,800 cases / year. The incidence takes into account the number of cases and the size of the population . This is because asbestos utilizearea in Western Europe remained the largest share by 1980 , while the peak of asbestos exposure in the United States took place between 1930-1960 . Australia was one of the world's largest producers of asbestos , which resulted in the highest incidence of mesothelioma in the world ( reporting on population size ) . In the United States the incidence rate began to decline , while Europe and Australia are expected constant level for the next 10 to 15 years before they begin to decline.

Following the ban on use of asbestos in many countries asbestos manufacturers began to promote the sale of their products in the developing countries in Asia and Latin America. Experts fear that the peak incidence in these countries will come, and will be similar situations encountered in the United States and Europe.