Stage 4 Lung Cancer Life Expectancy Without Treatment

What is Stage 4 lung cancer? Stage 4 non-small cell lung cancer (NSCLC) also called advanced lung cancer, is the most advanced form of lung cancer. In stage 4, the cancer has spread or metastasized beyond the lungs into other areas of the body. About 40 percent of NSCLC patients are diagnosed with lung cancer when they are in stage 4. Stage 4 non-small cell lung […]