Which statement best describes mesothelioma?

• A. It is a cancer with latency 30-50 years and non-dose-response
• B. It is a bacterial infection
• C. It is a short-term allergic reaction
• D. It is a non-cancerous fibrotic condition

Answer: (C)

Mesothelioma is a malignant cancer of the cells that line the chest and abdominal cavities, most often linked to asbestos exposure. A key part of understanding it is that it takes a long time to develop—patients typically notice symptoms many years, even decades, after exposure. The risk also increases with greater or longer exposure to asbestos, showing a clear dose-response relationship. So a statement that correctly notes a multi-decade latency is on the right track, but it would be incorrect to say there is no dose-response. It’s not a bacterial infection, not a short-term allergic reaction, and not a non-cancerous fibrotic condition (though asbestos can cause fibrosis in the lungs, mesothelioma itself is a cancer).