Mammograms of Estrogen-Receptor Positive Breast Tumors (IMAGE)

WashU Medicine

Mammograms of Estrogen-Receptor Positive Breast Tumors

Caption

These are mammograms of estrogen-receptor positive breast tumors before and after 16 weeks of aromatase inhibitor therapy. The top two images show a tumor that responded to the treatment and regressed. The bottom two images show a tumor that was resistant to the treatment and stayed about the same size. Ellis hopes whole-genome analysis will help explain drug-resistance so that new treatments can be found.

Credit

Images provided by Matthew J. Ellis

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