Therefore, measurements of tumor markers are usually combined with other tests, such as biopsies, to diagnose cancer. Tumor marker levels may be measured before treatment to help doctors plan the appropriate therapy. Tumor markers may also be measured periodically during cancer therapy. Tumor markers may also be measured after treatment has ended to check for recurrence the return of cancer. Show More. Login Register. Enjoying our content? Thanks for visiting Oncology Nurse Advisor.
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This is because tumor marker results have limitations see above and are sometimes wrong. They might:. Doctors use different tumor marker tests for different cancers. However, many cancers do not yet have tumor markers that can help guide care. Ask your health care team if you will have tumor marker testing.
You can also find information on tumor markers in the sections on different cancers on Cancer. If I have abnormal levels of a tumor marker, what does that mean? How could this result affect my treatment plan? National Cancer Institute: Tumor Markers.
Tumor Marker Tests Approved by the Cancer. How are tumor marker tests used? Tumor marker tests are most commonly used to do the following: Learn if a person has cancer. Limits of tumor marker tests Tumor marker tests are not perfect. A condition or disease that is not cancer can raise tumor marker levels. People without cancer can have high tumor marker levels. Tumor marker levels can change over time. The tests may not get the same result every time.
How is a tumor marker test done? They might: Show a tumor is present or growing when it is not. Show there is no tumor when one is present, or show treatment is working when it is not. No test is perfect. So your doctor will probably order several types of tests to find answers. Tumor marker tests and specific cancers Doctors use different tumor marker tests for different cancers. Questions to ask the health care team You might want to ask your health care team these questions.
Do you think I need any tumor marker tests? Which ones, and why?
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