Mammography under fire again

Fresh doubt has been cast over the benefits of mass breast cancer screening, with research suggesting up to a quarter of cancers detected by mammography would have remained harmless.

In some of the most precise estimates to date, researchers calculated that 15-25% of cancers picked up by mammography would never have presented clinically had they gone undetected.

For every 2500 women invited to biennial screening, between six and 10 would be overdiagnosed with cancers over a ten-year period, the study

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