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- W2034213100 abstract "We evaluated the diagnostic utility of simultaneous determination of 5 tumor markers, CEA, CA 125, CA 15-3, CA 19-9 and cytokeratin 19 (CYFRA 21-1), in fluid and serum from 101 patients, 52 with pleural effusion (22 malignant) and 49 patients with ascites (14 malignant). Tumor marker concentrations in fluid from patients with malignant effusions were significantly higher than those obtained in benign fluids or serum. However, there are two types of tumor markers: those released/secreted by normal mesothelia such as CA 125 and cytokeratin 19 (higher levels in benign fluids than in serum) and non-released/secreted tumor markers (low concentrations in benign fluids) such as CEA, CA 19-9 and CA 15-3. The fluid/serum (F/S) ratio showed better sensitivity with maximum specificity than a single determination in fluid for CEA, CA 15-3 and CA 19-9, but not for CA 125 and CYFRA. The combination of a F/S ratio greater than 1.2 and a cut-off of 5 ng/ml for CEA, 30 U/ml for CA 15-3 and 37 U/ml for CA 19-9 showed sensitivities of 58, 57 and 44%, respectively, and a specificity of 100%, with a combined sensitivity of 82% for overall effusions and 79% for fluids with negative cytology with a specificity of 100%. In conclusion, the use of the F/S ratio in nonsecreted tumor markers such as CEA, CA 19-9 and CA 15-3 improve the sensitivity and specificity and allow standardization of the cut-off." @default.
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- W2034213100 date "2004-01-01" @default.
- W2034213100 modified "2023-10-06" @default.
- W2034213100 title "Clinical Evaluation of the Simultaneous Determination of Tumor Markers in Fluid and Serum and Their Ratio in the Differential Diagnosis of Serous Effusions" @default.
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- W2034213100 doi "https://doi.org/10.1159/000081392" @default.
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