[The ambulatory care of patients with precancerous diseases of the stomach].

Two hundred and ninety-four patients with precancerous lesions of the stomach were followed and treated. The group included cases of gastric ulcer (101), polyps (78), atrophic-hyperplastic gastritis (81) and 34 patients who had undergone gastric resection for duodenal ulcer. Pathologic foci were surrounded by areas of epithelial dysplasia of varying degree in almost all patients. In the course of follow-up and treatment, dysplasia regressed in several cases and progressed to early cancer of the stomach in three. Recommendations for periodicity of check-ups of patients with chronic cancer of the stomach depending on degree of mucosal epithelium dysplasia were developed.