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tumor markers

substances made by cancer cells and sometimes by normal cells. They are not very useful for cancer screening because other body tissues not related to a cancer can often produce these substances, too. But tumor markers may be very useful in watching for a response to treatment after a cancer is diagnosed, looking for cancer that has come back (recurred), or monitoring the progression of advanced cancer.

Tumor Markers

... Tumor markers found on the cancer itself; What should you ask your doctor
about tumor markers? What's new in tumor marker research? ...

http://www.cancer.org/treatment/understandingyourdiagnosis/examsandtestdescriptions/tumormarkers/index

What are tumor markers?

... Because of this, most doctors use only a few tumor markers. When a doctor
looks at the level of a tumor marker, he or she will consider it along with ...

http://www.cancer.org/treatment/understandingyourdiagnosis/examsandtestdescriptions/tumormarkers/tumor-markers-what-are-t-m

How are tumor markers used?

... of a tumor marker can help predict the behavior and outlook for certain cancers.
In testicular cancer, very high levels of the tumor markers HCG ...

http://www.cancer.org/treatment/understandingyourdiagnosis/examsandtestdescriptions/tumormarkers/tumor-markers-how-t-m-used

Specific tumor markers

... the less common cancer types that may affect certain tumor marker levels,
in many cases it's not yet clear how helpful those tumor markers may be ...

http://www.cancer.org/treatment/understandingyourdiagnosis/examsandtestdescriptions/tumormarkers/tumor-markers-specific-markers

The drawbacks of tumor markers

... Even when levels of these markers are high, it doesn't always mean cancer
is present. For example, the level of the tumor marker CA 125 can be ...

http://www.cancer.org/treatment/understandingyourdiagnosis/examsandtestdescriptions/tumormarkers/tumor-markers-drawbacks-of-t-m

What's new in tumor marker research?

... Find Support & Treatment » Understanding Your Diagnosis » Exams and Test
Descriptions » Tumor Markers » What's new in tumor marker research ...

http://www.cancer.org/treatment/understandingyourdiagnosis/examsandtestdescriptions/tumormarkers/tumor-markers-whats-new

Tumor markers found on the cancer itself

... Other tumor marker tests: commercial labs and research studies. Tests for
many other tumor markers are available through commercial testing labs ...

http://www.cancer.org/treatment/understandingyourdiagnosis/examsandtestdescriptions/tumormarkers/tumor-markers-t-m-cancer-itself

Tumor markers found in blood or urine

... ways to test for this marker and each has its own normal value. Immunoglobulins.
Immunoglobulins are not classic tumor markers but instead are ...

http://www.cancer.org/treatment/understandingyourdiagnosis/examsandtestdescriptions/tumormarkers/tumor-markers-t-m-blood-urine

What should you ask your doctor about tumor markers?

... Do I have any tumor markers that are higher than normal? Which tumor
marker levels are high? What does this mean for me? ...

http://www.cancer.org/treatment/understandingyourdiagnosis/examsandtestdescriptions/tumormarkers/tumor-markers-ask-about-t-m

Tumor Markers

... the less common cancer types that may affect certain tumor marker levels,
in many cases it's not yet clear how helpful those tumor markers may be ...

http://www.cancer.org/acs/groups/cid/documents/webcontent/003189-pdf.pdf