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Tumor markers in pleural effusions.

O Topolcan1, L Holubec, V Polivkova

  • 1Department of Nuclear Medicine, Charles University, Medical School and Teaching Hospital Plzen, Czech Republic. topolcan@fnplzen.cz

Anticancer Research
|July 26, 2007
PubMed
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Tumor markers like CA 15-3 and thymidine kinase (TK) show high sensitivity for detecting malignant pleural effusions. Procalcitonin (PCT) and CA 15-3 can also suggest inflammatory conditions.

Area of Science:

  • Oncology
  • Pulmonology
  • Clinical Chemistry

Background:

  • Pleural effusions require accurate etiological assessment.
  • Tumor markers are increasingly used in diagnosing various conditions.
  • Identifying specific markers for pleural effusion etiology is crucial for patient management.

Purpose of the Study:

  • To evaluate the diagnostic utility of tumor markers in pleural effusions.
  • To determine the significance of these markers in assessing the cause of pleural effusions.

Main Methods:

  • Analyzed pleural effusions from 166 patients (2003-2005).
  • Measured tumor markers: thymidine kinase (TK), neuron-specific enolase (NSE), cytokeratins (TPA, TPS, CYFRA 21-1), CEA, CA 15-3, CA 19-9, CA 125.
  • Assessed inflammatory marker procalcitonin (PCT).

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Main Results:

  • CA 125, TPA, and TPS were elevated in exudates non-specifically.
  • Thymidine kinase (TK) demonstrated over 80% sensitivity for cancers.
  • CA 15-3 showed over 90% sensitivity.

Conclusions:

  • Elevated PCT and CA 15-3 suggest inflammatory pleural effusion.
  • Positive TK and CA 15-3 strongly indicate malignant pleural effusion.