Lung cancer is a malignant tumour in the tissue of one or both lungs. The tumour may be found in the bronchus tubes, or in the spongy lung tissue. Tumours in the lung may also be due to cancer which has spread through the blood from another part of the body.
There are two main types of lung cancer:
- Non-small cell lung cancer (NSCLC) – This is the most common type of lung cancer
- Small cell lung cancer (SCLC)
Lung cancer is the fourth most common cancer in men and women.