the value of gastric juice and tissue carcinoembryonic antigen ( cea ) analysis as an adjunct to endoscopic screening for gastric neoplasia was investigated in 61 patients with atrophic gastritis of whom 41 had other ( superimposed ) gastric lesions : six adenocarcinoma , four carcinoid , 23 regenerative polyps with or without dysplasia and eight fundic , or antral mucosal dysplasia .
C0001418
adenocarcinoma
C0007095
carcinoid