Precision Medicine: Are All Tests for the Same Tumor Biomarker Equal?

We have entered the era of precision oncology medicine, led by technical advances in nucleic acid and protein high throughput analyses and generation of targeted therapeutic agents. Obviously, precision medicine is driven by pathologic evaluation of tumor biomarkers. A deep understanding of tumor biomarker tests is essential, since there can be 1 or more assays for each tumor biomarker, and these may or may not be accurate or provide the same answer. Thus, clinicians must be cognizant not just of the tumor biomarker, but the test used to measure it.

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