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tumor profiling

(TOO-mer PROH-fy-ling)
A laboratory method that checks for the presence of certain genes, proteins, or other molecules in a sample of blood or tumor tissue. Tumor profiling may provide information about certain molecular or genetic changes in a tumor, such as gene mutations or other changes in tumor DNA. It may be used to help plan treatment or predict whether cancer will come back or spread to other parts of the body.
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Search NCI's Dictionary of Cancer Terms