Lung Cancer

Types of Lung Cancer There are two basic types of lung cancer. Small cell lung cancer (previously known as oat cell lung cancer) comprises of about 20% of all cases of lung cancer. All other lung cancer types are collectively called non-small cell lung cancer. Non-small cell lung cancer consists of a heterogeneous group of lung cancer with mainly three sub types: adeno carcinoma, squamous cell carcinoma, and large cell carcinoma. Even though the non-small cell comprises of different cell types, they usually show a similar behavior and are mostly treated in a similar way. Following is a break up of sub-types of non-small cell lung cancer. Adenocarcinoma (40% of all lung cancers), squamous cell type (30% of all lung cancers), large cell type (10% of all lung cancers).