Web Results

www.cancer.gov/.../diagnosis/tumor-markers-fact-sheet

Tumor markers are used to help detect, diagnose, and manage some types of cancer. Although an elevated level of a tumor marker may suggest the presence of cancer, this alone is not enough to diagnose cancer. Therefore, measurements of tumor markers are usually combined with other tests, such as biopsies, to diagnose cancer.

www.cancer.net/.../tests-and-procedures/tumor-marker-tests

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.

csn.cancer.org/node/240580

Some tumor markers are specific for a particular type of cancer, while others are seen in several cancer types. Most of the well-known markers may also be elevated in non-cancerous conditions. Consequently, tumor markers alone are not diagnostic for cancer. A tumor marker can be higher when there is cancer present.

cancerwall.com/cea-tumor-marker

Tumor markers are substances produced by cell- either normal or cancer cells. Normal cells produce tumor markers in much lower levels as cancer cells. For this reason, elevated levels of tumor marker can be a sign of cancer. There are many different tumor markers that are associated with one or more types of cancer.

medlineplus.gov/.../alpha-fetoprotein-afp-tumor-marker-test

An AFP (alpha-fetoprotein) tumor marker test measures the level of AFP in your blood. High levels of AFP can be a sign of liver cancer, cancer of the ovaries or testicles, and noncancerous liver disorders. Learn more.

www.medicinenet.com/ca_125/article.htm

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.

www.webmd.com/cancer/afp-tumor-marker-blood-test

An AFP tumor marker test checks the level of this protein. A higher AFP level doesn't always mean you have a health problem. Some people simply have more AFP than is typical. ... Very high levels ...

www.mayoclinic.org/diseases-conditions/cancer/in-depth/...

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.

www.oncolink.org/.../patient-guide-to-tumor-markers

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.

training.seer.cancer.gov/diagnostic/markers.html

Tumor Markers Key Information. For baseline and observation — to assess tumor burden and monitor levels of tumor and indicate a recurrence; prognosis (what treatment to use if the tumor should recur); most tumor markers are NOT specific, meaning that positive result does not necessarily mean that the primary site can be readily identified.