Cancer of the lip and oral cavity in stage IVB. Definition

Medical Definition: Cancer of the lip and oral cavity in stage IVB

Stage IV is divided into stages IVA, IVB and IVC. In stage IVB, the tumor has spread to one or more lymph nodes in more than six inches long (about 2 inches), or the cancer has spread to the muscles or bones of the oral cavity (mouth) or at the base of the skull or into 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.

* Automatic translation