Tumor marker test

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Tumor marker test
TermTumor marker test
Short definitionTumor marker test - (pronounced) (TOO-mer MAR-ker.
TypeCancer terms
SpecialtyOncology
LanguageEnglish
SourceNCI
Comments


Tumor marker test - (pronounced) (TOO-mer MAR-ker. . . ) A test that measures the amount of substances called tumor markers in tissue, blood, urine, or other body fluids. Most tumor markers are proteins made by both normal cells and cancer cells, but they are made in greater amounts by cancer cells. Genetic changes in tumor tissue such as gene mutations, gene expression patterns and other changes in tumor DNA are also used as tumor markers. A tumor marker test is usually done with other tests, such as biopsies or imaging, to help diagnose some types of cancer. It can also be used to help plan treatment, find out how well treatment is working, give a likely prognosis, or find out if the cancer has come back or spread to other parts of the body

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