Issues of diagnosis and treatment of complicated stomach cancer
Gastric cancer is one of actual problems of modern oncology and medicine in general, occupying the 5th place in the structure of cancer morbidity in the world and the 3<sup>rd</sup> place in the structure of the causes of cancer mortality. By now, significant progress has been made in the diagnosis and development of new methods of treatment of patients with this pathology. In spite of this, problem of the complicated forms of gastric cancer is still very actual. The most frequent complications are bleeding, perforation, stenosis and penetration. It is important to keep in mind that it is not uncommon for gastric cancer to go undiagnosed before a complication develops. Development of complications, in the majority of cases, leads to emergency condition, requiring emergency hospitalization of patients and surgical intervention. The population of patients with complicated gastric cancer is very heterogeneous, and the development of the complication itself is not necessarily associated with an unfavorable prognosis