What Are 3 Common Tumor Markers and Their Uses in Cancer Detection?

Learn about three key tumor markers—PSA, CA-125, and CEA—and their roles in detecting and monitoring different types of cancer.

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Three common tumor markers are PSA (Prostate-Specific Antigen), CA-125 (Cancer Antigen 125), and CEA (Carcinoembryonic Antigen). PSA is primarily used to screen for prostate cancer, CA-125 is often elevated in ovarian cancer, and CEA is used to monitor colorectal cancer among others. These markers can help in diagnosing, monitoring treatment response, and checking for cancer recurrence.

FAQs & Answers

  1. What are tumor markers used for? Tumor markers are substances, often proteins, found in the blood or tissues that help in diagnosing cancer, monitoring treatment effectiveness, and detecting cancer recurrence.
  2. What types of cancer are PSA, CA-125, and CEA markers associated with? PSA is associated with prostate cancer, CA-125 is elevated in ovarian cancer, and CEA is used to monitor colorectal cancer and other types.
  3. Can tumor marker tests alone diagnose cancer? No, tumor marker tests are used alongside other diagnostic methods such as imaging and biopsies to confirm cancer diagnosis.

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