Breast Cancer

Why are there fewer HER2 positive breast cancers in screen-detected patients?

Screen-detected breast cancers have significantly lower rates of HER2 positivity which may explain the survival advantage in women diagnosed following mammography compared to those diagnosed with symptoms. A study of more than 100,000 cases of invasive breast cancer from the BreastSurgANZ Quality Audit has shown quite different molecular profiles in screen-detected versus other breast cancers. ...

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