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Glossary Term

stage 0 esophageal carcinoma in situ     (... ee-SAH-fuh-JEE-ul KAR-sih-NOH-muh in SY-too)

Abnormal cells are found in the mucosa or submucosa layer of the esophagus wall. These abnormal cells may become cancer and spread into nearby normal tissue. Stage 0 is also called high-grade dysplasia.