TUMOR MARKER DIAGNOSTICS IN CANCER DISEASES

Abstract: This article analyzes the diagnostic significance of tumor markers in the early detection and effective treatment of cancer. The relevance of the study lies in the importance of laboratory biomarkers that enable early identification of tumor processes, improving patient outcomes. Clinical observation, laboratory testing, and statistical analysis methods were applied. The results indicate that a combined evaluation of CEA, AFP, and CA-125 markers enhances diagnostic accuracy. The scientific and practical value of this study is its contribution to improving individualized diagnosis and monitoring systems in oncology.