stage 0

Definition of stage 0 Merkel cell carcinoma in situ

stage 0 Merkel cell carcinoma in situ

(stayj … MER-kul sel KAR-sih-NOH-muh in SY-too)
Abnormal Merkel cells are found in the top layer of the skin. These abnormal cells may become cancer and spread into nearby normal tissue.

Source: NCI Dictionary of Cancer Terms