What is lung cancer?
Lung Cancer is a type of cancer that starts in the lungs.
Sometimes cancers spread to the lungs from their site of origin during their late-stage. When cancer spread like this, the resultant tumour is called a metastatic mass. It is not classified as lung cancer.
What are the types of lung cancer?
The two major types of lung cancer are:
- Non-small cell lung cancer
- Small cell lung cancer (oat cell cancer)Non-small cell lung cancer
- Small cell lung cancer (oat cell cancer)
About 80 to 85% of lung cancers are non-small cell lung cancers, while 10 to 15% are small cell lung cancers.