Mesothelioma cancer

Mesothelioma cancer

Mesothelioma affects on mesothelium cells of the heart, lungs, abdomen and reproductive organs. Mesothelioma cancer has a 20 to 50 years latency period. The major mesothelioma agents that cause this unusual cancer are fiber minerals such as tremolite asbestos, erionite, winchite and fluoro-edenite. Any fibers shorter than 7-8 mu and broader than 0.04-0.05 mu are able to produce mesothelioma. When dust-size particles are inhaled, the crystals enter into the body by piercing the walls of the organs. Once the particles get in the organs tissue, they stay there permanently and start causing a injuring on mesothelium cells.

Mesothelioma was primary associated with environmental and occupational exposure to asbestos. For the first time mesothelioma was mentioned and described in South Africa in the 1950s, Even then was clear that it is not necessary heavy asbestos exposure. An epidemic of mesothelioma was documented also in Europe, North America, Australia and even in Japan. Almost 25 years were needed so the authorities widely accept and recognize the danger of the asbestos and its health risks became a more important priority than its commercial value. The market of asbestos collapsed in the mid 1980s.

In 1975 erionite was mentioned as another mesothelioma risk factor. Turkish government made a study that uncovered a high incidence of a malignant mesothelioma in lung tissues of people in certain small villages in the Cappadocia area in Turkey's central mountainous region. Erionite is probably the most toxic known mineral; a milligram of fibers in the lungs is lethal.

Fluoro-edenite is the other fiber other than erionite and winchite , not yet classified as asbestos, that has a demonstrable mesotheliomatogenous action in humans. This mineral was found in Biancavilla (in eastern Sicily, Italy), where high persent of people died of pleural mesothelioma. The fibers were detected in the materials extracted from the quarries and in the plaster or mortar of the buildings in Biancavilla.

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