stage 0

Definition of stage 0 esophageal carcinoma in situ

stage 0 esophageal carcinoma in situ

(... ee-SAH-fuh-JEE-ul KAR-sih-NOH-muh in SY-too)
Cancer has formed in the inner lining of the esophagus wall. Stage 0 is also called high-grade dysplasia.

Source: NCI Dictionary of Cancer Terms