Management of patients with multiple primary сancer in the practice of a modern oncologist. Case report and literature review

The purpose of the study. multiple primary malignant neoplasms or polyneoplasia are a phenomenon of tumorigenesis and one of the little-studied categories in modern clinical oncology. the increase in the cancer incidence, as well as the need to make difficult decisions about further treatment strategy, enhance the relevance of studying multiple primary malignant neoplasms. this review discusses the current positions of medicine in relation to this category of malignant neoplasms, and presents a case report of a patient with this disaese. material and methods. We have analyzed the results of international studies on the management of patients with multiple primary cancer. the search for relevant sources was carried out in the Web of science, scopus, medline systems with a chronological interval of 2016-2021. of the analyzed studies, 60 were used to compile a systematic review with a case report. Results. the analysis showed that timely diagnosis and improvement of cancer screening programs are necessary to improve the control of these tumors. psychological work with a patient, strengthening of his commitment to therapy and the implementation of medical recommendations are integral parts of improving cancer care for patients with such disease. Conclusion. a comprehensive analysis of multiple primary malignant tumors requires long-term follow-up of a large population, taking into account genetic factors, environmental factors, exposure to smoking and nutrition, and comorbid pathology. timely diagnosis and improvement of cancer screening programs are necessary to improve the control of multiple primary malignant tumors.