Medically reviewed by Doru Paul, MD Early-stage lung cancer usually refers to stages 1, 2, and 3A non-small cell lung cancer ...

Cancer is considered metastatic when it has spread to distant lymph nodes or organs. Even some early-stage cancers, like some stage 2A lung cancers, have positive lymph nodes but are not ...

across and hasn’t spread to any other tissues or lymph nodes. In stage IB, it’s no more than 4 centimeters and has spread to the main bronchus of the lung’s lining, or both. Surgery ...