HISTOMORPHOLOGICAL FEATURES OF PRECANCEROUS DISEASES OF THE STOMACH

Abstract

Stomach cancer occupies one of the leading places in the structure of the incidence of malignant neoplasms and ranks 3rd in mortality. This pathology has geographical heterogeneity, among the leaders are East Asian countries, the regions with the lowest incidence include North America and Western Europe.

The frequency and distribution of histological types of gastric cancer vary depending on the region. Over the past 50 years, morbidity and mortality have decreased worldwide, especially in developed countries, primarily the number of intestinal adenocarcinomas has decreased.

Despite the high incidence in Asian countries, the 5-year survival rate is 64.2%, in North America and Europe — 2.7% and 8.5%, respectively.

Despite the fact that there is a downward trend in the incidence of stomach cancer, mortality remains at a consistently high level, with about 700,000 deaths recorded annually.