Which type of lung cancer is the most common?

Adenocarcinoma is the most common type of lung cancer, particularly in non-smokers. It is characterized by the presence of glandular cells that produce mucus and arises from the peripheral regions of the lung. This type of cancer has become increasingly prevalent, especially with the decline in smoking rates impacting the incidence of other types of lung cancer, such as squamous cell carcinoma. Adenocarcinoma tends to grow slower than small cell carcinoma, allowing for earlier detection and treatment in many cases.

Additionally, adenocarcinoma is associated with specific genetic mutations, making it more responsive to targeted therapies. This has further contributed to its rising incidence and commonality in the overall lung cancer landscape.