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Tumor Markers

Tumor markers are biomolecules—typically proteins, antigens, or genetic material—produced by malignant cells or by the body in response to malignancy. They are found in blood, urine, stool, tumor tissue, or other bodily fluids, and are used to support the diagnosis, prognosis, treatment planning, and surveillance of various cancers.  Some examples of common Tumor Markers are AFP, CA-125, HER2 and PSA.  Tumor markers are most effective when used in conjunction with clinical evaluation, imaging, and histopathology.