Cancer markers or tumour markers are used to help detect, diagnose, and manage some types of cancer. A cancer marker is a substance that is produced by the body in response to cancer, or is produced by the cancer cell itself. It’s found in very high levels in the blood, urine or body tissue of cancer patients.Although an elevated level of a tumour marker may suggest the presence of cancer, this alone is not enough to diagnose cancer. Find out more about this at Are Cancer Marker Tests Reliable? (Shape Magazine, 1 October 2017). Online version is also available.
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