A new kind of blood test promises to find cancer early – sometimes even before symptoms appear. The pitch is compelling: a single sample of blood could scan the body for dozens of different cancers at once, catching disease at a stage when it is easier to treat and more likely to be curable . For people who fear cancer – which is most of us – this sounds like a medical revolution. These tests look for tiny pieces of DNA from cancer cells that are circulating in the blood – something my research

Tag-uri: DNA