Doctors stage non-small cell lung cancer (NSCLC) according to how far it has progressed. Stages range from occult (or hidden) cancer to stage 4 cancer, in which multiple organs may be affected.

Small-cell lung cancer (SCLC) is the most aggressive type of lung cancer. Each year in the U.S., about 30,000 to 35,000 people are diagnosed with it. For most, it has already spread to distant ...

Stage 4 non-small cell lung cancer (NSCLC) is the most advanced form of the condition and can be challenging to treat. Treatments include chemotherapy, surgery, immunotherapy, and radiotherapy.

Small-cell lung cancer is a highly malignant form of lung cancer, also known as oat-cell carcinoma, that accounts for approximately 15% of lung cancer cases. Composed of small, ovoid cells with ...