Blood test 'detects breast cancer relapse early'

But charities warn there is a long way to go before the life-saving tests could be made available in hospitals

Cancer
(Image credit: Getty)

A simple blood test can accurately detect breast cancer relapses several months before hospital scans, researchers have discovered.

Scientists at London's Institute of Cancer Research have developed a test that can detect small amounts of residual cancer cells that have resisted therapy by looking for tumour DNA in the blood.

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