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Liquid cancer test offers hope for alternative to painful biopsies

Researcher Aubrey Zapanta in the lab at Guardant Health looking at mutations in 70 cancer-related genes, in Redwood City, California. The next frontier could be to develop a blood test to detect many or virtually all types of cancer at an early stage, when they might be most easily treatable.


A BLOOD test to detect cancer mutations produced results that generally agree with those of an invasive tumour biopsy, researchers reported, heralding a time when diagnosing cancer and monitoring its progression may become less painful and risky.

The blood tests, known as