Mesothelioma is strongly linked to which exposure?

Mesothelioma is strongly linked to which exposure?

• A. Asbestos
• B. Coal dust
• C. Silica dust
• D. Radiation exposure

Answer: (A)

Mesothelioma is most strongly linked to asbestos exposure. This cancer arises from mesothelial cells that line the pleura (and less commonly the peritoneum), and occupational exposure to asbestos fibers—historically in industries like shipbuilding, construction, and insulation—significantly increases risk. There is a long latency period, often decades, between exposure and disease presentation. The malignant transformation is driven by inhaled asbestos fibers that persist in the pleural space, causing chronic inflammation and pleural changes that can progress to cancer; amphibole forms tend to be more potent than chrysotile due to greater biopersistence. While other exposures like coal dust, silica dust, or radiation can cause lung disease or other cancers, asbestos remains the strongest and most characteristic link to mesothelioma.

Mesothelioma is most strongly linked to asbestos exposure. This cancer arises from mesothelial cells that line the pleura (and less commonly the peritoneum), and occupational exposure to asbestos fibers—historically in industries like shipbuilding, construction, and insulation—significantly increases risk. There is a long latency period, often decades, between exposure and disease presentation. The malignant transformation is driven by inhaled asbestos fibers that persist in the pleural space, causing chronic inflammation and pleural changes that can progress to cancer; amphibole forms tend to be more potent than chrysotile due to greater biopersistence. While other exposures like coal dust, silica dust, or radiation can cause lung disease or other cancers, asbestos remains the strongest and most characteristic link to mesothelioma.