Lung cancer is a cancer that forms in tissues of the lung, usually in the cells lining air passages. The two main types are small cell lung cancer and non-small cell lung cancer.
This video released by Macmillan Cancer Support provides a general overview of lung cancer.
More top news
EastEnders bosses have promised to send Jake Wood's character "out with a bang".
Bono said the death of Dennis Sheehan, who had been the band's manager for more than 30 years, was like "losing a family member".
Up until today Zurich has always been a safe haven for Fifa - an island could behave just how they wanted. Yesterday changed everything.