Which of the following is true about pneumoconiosis
Correct Answer: Asbestosis and smoking act synergistically to cause lung cancer
Description: Lung cancer is the most common cancer associated with asbestos exposure. The excess frequency of lung cancer (all histologic types) in asbestos workers is associated with a minimum latency of 15-19 years between first exposure and development of the disease. Persons with more exposure are at greater risk of disease. In addition, there is a significant interactive effect of smoking and asbestos exposure that results in greater risk than what would be expected from the additive effect of each factor. Ref Harrison 19th edition pg 1687-88
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