stage 0 gastric cancer (carcinoma in situ)
(... GAS-trik KAN-ser (KAR-sih-NOH-muh in SY-too))
Abnormal cells are found in the mucosa (innermost layer) of the stomach wall. These abnormal cells are not actually cancer but may become cancer and spread into nearby normal tissue. Also called stage 0 stomach cancer (carcinoma in situ).