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  • Title: [Clinical evaluation of various tumor markers in pleural effusion and in the serum].
    Author: Jibiki K, Abe Y, Takeda M, Iwachika C, Odagiri E, Demura R, Demura H.
    Journal: Gan No Rinsho; 1989 Aug; 35(9):991-8. PubMed ID: 2769951.
    Abstract:
    Various tumor markers and enzymes in the pleural effusion and serum have been measured in 47 patients with carcinoma and in 43 patients with benign disease, by means of a radioimmunoassay and biochemical methods. CEA in the pleural effusion showed a high specificity and sensitivity for the detection of the malignancy. In patients with a lung cancer, measurement of the NSE in the serum was more useful than in the pleural effusion. Further, both CA19-9 and SCC in the pleural effusion showed a high specificity in a differential diagnosis of cancer and benign diseases. On the other hand, CA 125, TPA and IAP in the pleural effusion and in the serum showed a high sensitivity, but a low specificity for diagnosing the malignancy. The levels of ADA were significantly higher in tuberculous pleural effusions than in carcinomatous effusions. Therefore, this suggests that measurement of the various tumor markers in both the pleural effusion and in the serum is useful in achieving a differential diagnosis of malignant and benign diseases.
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