A new study from the Mayo clinic in the United States points to a frequent problem in certain types of medical research. When healthy volunteers or patients with a given condition take part in research studies they may have brain scans, CAT scans, blood tests or genetic tests that they wouldn’t otherwise have had. These tests are not done for the benefit of the individual, they are designed to answer a research question. But sometimes, quite often according to the authors of this new study, researchers may spot something on the scan that shouldn’t be there, and that could indicate a previously undiagnosed health condition. These ‘incidental findings’ generate an ethical dilemma for researchers. Should they tell the research participant about the shadow seen on their scan? Do they have an obligation to reveal to a research participant that they have found them to carry a gene increasing their risk for breast cancer, or Alzheimer’s disease? There is much agonising by ethics committees, ethicists and researchers about the problem of incidental findings, but there is a simple way of avoiding the problem. Anonymise research databases and tests so that there is no possibility of determining which participant has the breast cancer gene, or the lump in their kidney.
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