STAT June 17, 2024
The hope for many cancer patients who go through surgery is that they’ll be cured after the surgeon removes the tumor. The question that lingers is whether they got it all out — if the surgery happened in time before cancer cells scattered off of the primary tumor to seed unseen metastases or if some microscopic malignancy was left behind near the original cancer site.
To answer this question, clinicians are increasingly turning to blood tests that detect circulating tumor DNA, known as ctDNA. The idea is that finding tumor DNA in the blood probably means that cancer cells are still growing somewhere in the body, even at a...
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