stage 0

Definition of stage 0 nonmelanoma skin carcinoma in situ on the eyelid
National Cancer Institute

stage 0 nonmelanoma skin carcinoma in situ on the eyelid

(... non-MEH-luh-NOH-muh skin KAR-sih-NOH-muh in SY-too ... I-lid)
Abnormal cells are found in the epidermis, usually in the basal cell layer. These abnormal cells may become cancer and spread into nearby normal tissue. Also called nonmelanoma skin carcinoma in situ on the eyelid.

Source: NCI Dictionary of Cancer Terms