- Lung cancer is a malignant tumor of the bronchi covering.
- Very few lung cancer cases are found among non-smokers.
- The tumor grows through surrounding tissue, invading and often obstructing air passages.
- The time between exposure to asbestos and the occurrence of lung cancer is 20 to 30 years.
- It should be noted that there is a synergistic effect between asbestos exposure and smoking,
which creates an extreme susceptibility to lung cancer.