Understanding Tumor Markers: What they are and Why they matter

Wow, this is such good information on tumor markers! Very detailed and helpful and some other tumours areM2-PK (Pyruvate kinase isoenzyme) – Colorectal cancer,CA 72-4 – Gastric cancer& GGT (Gamma-glutamyl transferase) – Liver cancer

Very Informative

At what stage of cancer are they usually detectable in the blood tests?

A few more commonly used ones include CA 15-3 (breast cancer monitoring), CA 72-4 (gastric cancer), Chromogranin A (neuroendocrine tumours), LDH (lymphomas, germ cell tumours), Calcitonin (medullary thyroid cancer), Thyroglobulin (thyroid cancer follow-up), and β2-microglobulin (multiple myeloma, lymphomas).

For cancers like ovarian, colorectal, lung, breast, liver, germ cell, prostate, pancreatic it is important to test tumor markers that helps in supporting diagnosis along with imaging and biopsy.