Stage IV throat cancer. A stage IV throat cancer tumor may be any size and remain in the neck, or it may have affected multiple lymph nodes. It may also have spread to distant sites, such as the lungs (Example: Any T, Any N, M1).
Stage III and IV cancers of the throat are referred to as locally advanced. These cancers are large and/or have spread to regional lymph nodes. Stage III cancers are more than 4 centimeters in diameter or any size with spread to a single lymph node on the same side of the neck as the primary cancer.
Stage IV Throat Cancer. Stage IV is the most-advanced stage of throat cancer. The tumor may be any size, but it has spread to: nearby tissue, such as the neck, trachea, thyroid, esophagus, jaw, mouth, or other locations.