News & stories Research news Research suggests DNA changes give off 'signals' up to decades before they grow to be malignant 6 February 2020 New research has found that tumours can give off traceable 'signals' up to decades before they grow to be malignant. Researchers discovered that genetic mutations which fuel the growth of tumours often occur years before the cancer is discovered. These changes occurred 'particularly early' - up to 50 years before - in ovarian cancer. . Read more here Manage Cookie Preferences