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Tumor markers in non-malignant diseases.
1Department of Biochemistry, Faculté de Médecine, Pitié-Salpêtrière, Paris, France.
European Journal of Cancer & Clinical Oncology
|July 1, 1988
Summary
This review highlights that common biological factors and non-cancerous diseases significantly impact tumor marker levels. Accurate interpretation of tumor markers like CA 19-9 is crucial for cancer patient follow-up.
Area of Science:
- Oncology
- Clinical Chemistry
Background:
- Tumor markers are essential in cancer diagnostics and monitoring.
- Recent tumor markers include CA 19-9, CA 125, CA 15-3, CA 50, and SCC antigen.
- Understanding factors influencing marker levels is critical for accurate clinical application.
Purpose of the Study:
- To review the specificity of recently introduced tumor markers.
- To identify biological and non-malignant conditions affecting serum tumor marker levels.
- To provide practical guidance for interpreting tumor marker results in cancer patient follow-up.
Main Methods:
- Literature review of studies on tumor marker specificity.
- Analysis of factors influencing serum levels of CA 19-9, CA 125, CA 15-3, CA 50, and SCC antigen.
- Synthesis of data regarding biological conditions, intoxications, and non-malignant diseases.
Main Results:
- Tumor markers exhibit limited specificity.
- Serum levels are affected by age, sex, pregnancy, menstruation, smoking, alcohol, and non-malignant diseases.
- These factors can lead to false positives or alter baseline levels.
Conclusions:
- The clinical utility of tumor markers is constrained by their lack of absolute specificity.
- Careful consideration of patient-specific factors is necessary for correct interpretation of tumor marker assays.
- Accurate interpretation aids in effective cancer patient management and follow-up.