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[Esophageal and stomach pathology of residents in areas characterized by a high incidence of esophageal cancer morbidity].

A high incidence of pathology in the esophagus was established in patients with chronic, particularly atrophic, gastritis (esophagitis, leukoplakia, dysplasia, fibrosis of submucosa, early forms of cancer, etc.). Most patients with chronic gastritis revealed esophagitis (71%) with concomitant leukoplakia (70.6%) or dysplasia (49%) which can be identified as precancer. Therefore, patients suffering from severe chronic gastritis, involving lesions of glands and atrophy of mucosa, living in areas with highly-endemic esophageal cancer should be referred to those at high risk for cancer of the esophagus. Timely examination for and therapy of chronic esophagitis in patients with a long history of severe chronic gastritis should be indispensable to prevent esophageal cancer.