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There are two main types of tumor markers that have different uses in cancer care: circulating tumor markers and tumor tissue markers. Circulating tumor markers can be found in the blood, urine, stool, or other bodily fluids of some patients with cancer. Circulating tumor markers are used to:


A tumor marker is a substance that is produced by a cancer, or by the body itself because cancer is present. Tumor markers are commonly used in cancer care to monitor treatment response or for recurrence of cancer, but they must be part of a bigger picture, including physical exam, patient symptoms and radiology studies.


Tumor markers are substances, usually proteins, that are produced by the body in response to cancer growth or by the cancer tissue itself and that may be detected in blood, urine, or tissue samples. Some tumor markers are specific for a particular type of cancer, while others are seen in several cancer types.


Read about CA 125, a test used to determine levels of a tumor marker that may be elevated in cases of ovarian cancer. Certain benign conditions, including endometriosis, uterine fibroids, and pelvic inflammatory disease, may be associated with increased CA 125 results. Learn about normal values for CA 125.


Tumor markers are substances found at higher than normal levels in the blood, urine, or body tissue of some people with cancer. Although cancer cells often produce tumor markers, healthy cells in the body may produce them as well. Tumor markers are also called biomarkers.Tumor markers and cancerHigh tumor marker levels can be a sign of cancer.


Tumor marker tests. Tumor markers are chemicals made by tumor cells that can be detected in your blood. But tumor markers are also produced by some normal cells in your body, and levels may be significantly elevated in noncancerous conditions. This limits the potential for tumor marker tests to help in diagnosing cancer.


Many circumstances, such as other health issues or disease, can contribute to raised tumor marker levels. There have also been incidences of increased tumor marker levels in people with no active cancer. Blood samples for tumor markers can vary over time and may make obtaining consistent results difficult. In the beginning stages of cancer ...


There is not a normal tumor marker number, according to the National Cancer Institute. Noncancerous conditions can sometimes cause tumor markers to rise. Markers have not been identified for every type of cancer, and some people with certain types of cancer do not experience higher marker levels.


A tumor marker is a biomarker found in blood, urine, or body tissues that can be elevated by the presence of one or more types of cancer. There are many different tumor markers, each indicative of a particular disease process, and they are used in oncology to help detect the presence of cancer.


WebMD explains how the CEA test works and how it can help your doctor monitor your cancer treatment. ... protein called CEA in the blood. ... use CEA as a “marker” to learn more about your cancer.