There are two groups of Lung Most cancers: Compact Cell Lung Most cancers (SCLC) , most aggressive,15% of all lung cancers ,completely in smokers Non-Smaller Cell Lung Cancer (NCLC) eighty five% of all lung cancers, in non-smokers, women Adenocarcinoma Squamous cell carcinoma (SCC) Large cell carcinoma (LCC) Bronchoalveolar carcinoma (BAC) https://lungsandheart.com/understanding-lung-cancer/