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[Laboratory diagnosis of tumors of the pancreato-biliary area in patients with mechanical jaundice].

Blood investigation of tumor markers CA-19-9, carcinoembryonic antigen and alpha-fetoprotein was performed in patients with mechanical jaundice due to tumor involvement of the pancreatobiliary area and a nontumor process. It was concluded that the use of CA-19-9-marker and carcinoembryonic antigen provided a successful differential diagnosis between jaundice resultant from tumor and nontumor diseases. Alpha-fetoprotein turned to be of no informative value. Analysis of tumor markers contents in patients with pancreatobiliary tumors demonstrated the usefulness of them in the preoperative assessment of surgical intervention practicability.