IVC

Definition of stage IVC lip and oral cavity cancer
National Cancer Institute

stage IVC lip and oral cavity cancer

(... OR-ul KA-vih-tee KAN-ser)
Stage IV is divided into stages IVA, IVB, and IVC. In stage IVC, the tumor has spread beyond the lip or oral cavity to other parts of the body, such as the lung, liver, or bone.

Source: NCI Dictionary of Cancer Terms