NCI Dictionary of Cancer Terms

The NCI Dictionary of Cancer Terms features 8,380 terms related to cancer and medicine.

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The total number of mutations (changes) found in the DNA of cancer cells. Knowing the TMB may help plan the best treatment. For example, tumors that have a high number of mutations appear to be more likely to respond to certain types of immunotherapy. TMB is being used as a type of biomarker. Also called tumor mutational burden.