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Dictionary of Cancer Terms

View in Spanish: Cáncer de labio y cavidad oral en estadio IVB

Stage IVB lip and oral cavity cancer ( OR-ul KA-vih-tee KAN-ser)
Stage IV is divided into stages IVA, IVB, and IVC. In stage IVB, the tumor has spread to one or more lymph nodes that are larger than 6 centimeters (about 2 inches); or cancer has spread to the muscles or bones in the oral cavity (mouth), or to the base of the skull, and/or the carotid artery (blood vessel that carries blood from the heart to the head). Cancer may also have spread to one or more lymph nodes in the neck.

Source: National Cancer Institute Dictionary of Cancer Terms, available at www.cancer.gov/dictionary.