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A plaque caused by asbestos exposure on the diaphragmatic pleura: Specialty: Pulmonology: Symptoms: Shortness of breath, cough, wheezing, chest pain [1] Complications: Lung cancer, mesothelioma, pleural fibrosis, pulmonary heart disease [1] [2] Usual onset ~10-40 years after long-term exposure [3] Causes: Asbestos [4] Diagnostic method
The World Health Organization breaks down the three types of carcinogens that can cause cancer in humans. The first type of carcinogen is the physical type which can be ultraviolet and ionizing radiation. The second type of carcinogens is defined as asbestos, tobacco smoke, alcohol, aflatoxin, and arsenic.
Asbestos can cause lung cancer that is identical to lung cancer from other causes. Exposure to asbestos is associated with all major histological types of lung carcinoma (adenocarcinoma, squamous cell carcinoma, large-cell carcinoma and small-cell carcinoma). The latency period between exposure and development of lung cancer is 20 to 30 years.
The American Conference of Governmental Industrial Hygienists has a recommended Threshold Limit Value (TLV) for asbestos of 0.1 fibers/mL over an 8-hour shift. OSHA in the United States and occupational health and safety regulatory jurisdictions in Canada use 0.1 fibers/mL over an 8-hour shift as their exposure limits. [19]
Fluid around the lung [1] Usual onset: Gradual onset [2] Causes: c. 40 years after exposure to asbestos [3] Risk factors: Genetics, possibly, infection with simian virus 40 [3] [4] Diagnostic method: Medical imaging, examining fluid produced by the cancer, tissue biopsy [2] Prevention: Decreased asbestos exposure [5] Treatment
Asbestos (/ æ s ˈ b ɛ s t ə s, æ z-,-t ɒ s / ass-BES-təs, az-, -toss) [1] is a group of naturally occurring, toxic, carcinogenic and fibrous silicate minerals.There are six types, all of which are composed of long and thin fibrous crystals, each fibre (particulate with length substantially greater than width) [2] being composed of many microscopic "fibrils" that can be released into ...
While these symptoms may indicate cancer, they can also have other causes. [1] Over 100 types of cancers affect humans. [7] Tobacco use is the cause of about 22% of cancer deaths. [2] Another 10% are due to obesity, poor diet, lack of physical activity or excessive alcohol consumption.
Workers are frequently exposed to asbestos during demolition and renovation work, which can cause asbestosis and/or mesothelioma. Asbestos exposure can also cause pleural effusion, diffuse pleural fibrosis, pleural plaques, and non-mesothelioma lung cancer. Smoking greatly increases the lung cancer risk of asbestos exposure. [3]