[Results of esophagogastroduodenoscopy many years after Chernobyl accident among those taking place in the liquidation of the results of the disaster].

Gastroduodenal disorders were studied endoscopically for 5 years in 159 Chernobyl wreckers and were compared to subjects unexposed to ionising radiation. Upper gastroduodenal tract was examined with esophagogastroduodenoscopy to avoid additional radiation load. It was found that 8-12 years after irradiation, many examinees had gastroduodenal mucosa erosions the rate of which was persistently high. Incidences of malignant and benign tumors in the study and control groups did not differ significantly.