MORPHOLOGIC ASPECTS OF TISSUE ALTERATION OF THE GASTROESOPHAGEAL JUNCTION UNDER CONDITION OF EXPERIMENTAL GASTROESOPHAGEAL REFLUX

An experimental use of the developed method of simulating gastroesophageal reflux disease is accompanied with the development of pathohistologic changes typical of reflux-esophagitis. The course of an inflammatory process at early stages of its development is characterized by a predomination of alterative changes in the tissues of the esophagus, which spread through out its all layers. The evidence of a long-lasting influence of the acidic-peptic factor is the visualization of erosions and ulcers, that appear at different stages of development.