17/03/2025
Understanding Tumor Markers: What Do They Really Tell Us?
Tumor markers are substances—proteins or chemicals—found in the blood, urine, or tissues that can indicate cancer. However, these markers are not definitive diagnostic tools. They can be elevated due to non-cancerous conditions or remain normal even in cancer patients.
Here’s a breakdown of tumor markers for different cancers:
🔹 Thyroid Cancer: CEA, Thyroglobulin
🔹 Lung Cancer: CEA, CA-125, Cyfra 21-1
🔹 Breast Cancer (Female): CEA, CA 15-3
🔹 Oesophageal Cancer: CEA, CSS
🔹 Liver/Bile Duct Cancer: CEA, AFP, CA 19-9
🔹 Stomach/Pancreatic Cancer: CEA, CA 19-9, CA 72-4
🔹 Colorectal Cancer: CEA, CA 19-9, M2-PK
🔹 Ovarian Cancer (Female): CA-125, CA 72-4
🔹 Uterine Cancer (Female): CEA, CA-125, SCC
🔹 Prostate Cancer (Male): PSA, FPSA, and Ratio
🔹 Testicular Cancer (Male): AFP, BHCG
🔹 Bone Metastases: CEA
Why Are Tumor Markers Important?
➡️ Not for screening or diagnosis alone – They lack accuracy in early cancer detection.
➡️ Best used for monitoring – To track treatment response and detect recurrence in cancer patients.
➡️ Must be interpreted by experts – Levels can be affected by various health conditions.
At ATP Labs, we focus on accurate diagnostics and patient education. If you have concerns about tumor markers, consult a healthcare professional.