1. Stage 3 cancer is considered advanced.

Doctors designate the tumor stage for every cancer--that is, a number that indicates how much it’s spread throughout the body. Understanding the different stages of lung cancer may help you better understand your specific diagnosis. One of the most important things to understand about stage 3 lung cancer is that experts consider it to be an advanced stage of cancer. That means the malignant cancer cells have spread from the lungs to other places in the body, such as the lymph nodes, heart, trachea, esophagus or other organs and tissues near the lungs.



