A blood test every four months could help women at high-risk of ovarian cancer find tumours early, say doctors. There is currently no screening programme for the disease, so high-risk women are advised to have their ovaries and fallopian tubes removed.
In the trial on 4,348 women, published in the Journal of Clinical Oncology, cancers were detected earlier, when they should be easier to treat.
See the full story here on the BBC website. See our Encyclopaedia for more information on ovarian cancer.