Lung cancer is the leading cause of cancer death in American men and women. It is estimated that in 2004 about 173,770 new cases of lung cancer will be diagnosed and about 160,440 deaths will occur due to lung cancer in the United States. 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 lung cancer. You may find detailed general information on lung cancer below.