stage 0

Definition of stage 0 lip and oral cavity carcinoma in situ
National Cancer Institute

stage 0 lip and oral cavity carcinoma in situ

(... OR-ul KA-vih-tee KAR-sih-NOH-muh in SY-too)
Abnormal cells are found in the lining of the lips and oral cavity. These abnormal cells may become cancer and spread into nearby normal tissue.

Source: NCI Dictionary of Cancer Terms