[Use of tumor markers in the differential diagnosis of voluminous formations of the liver].

The radioimmunological method was used to determine the content of tumor markers APP, REA, CA 19-9, and CA 72-4 in 53 patients with nonmalignant three-dimensional structures in the liver (hemangioma, nonparasitic cysts, alveococcosis, hydatid cysts), in 9 patients with primary carcinoma of the liver, and in 24 healthy individuals. The significance of APP determination and complex study of tumor markers in the recognition and differential diagnosis of benign and malignant structures in the liver is shown. It allowed the percentage of disparity between the laboratory and the verified diagnosis to be reduced to 4.8%.