we evaluated the changes over 1-55 months in mild gastric epithelial dysplasia ( a relatively frequent , but not widely studied histological lesion ) in 20 patients ( 11 with benign gastric ulcer , eight with chronic gastritis , and one after billroth 2 operation ) , in order to ascertain whether to follow-up such patients in the future .
C0038351
gastric
C0085695
chronic gastritis