One tumor TN and two tumors Er+

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Elimangrove
Elimangrove Member Posts: 1
edited June 2014 in Triple-Negative Breast Cancer

Hello,

my sister was initially diagnosed with TNBC and underwent 7 months of chemo and had a masectomy ast month. Her results form the chemo were very good, all three tumors had shrunk to over 1/2 original size. However afterall three were biopsied they discovered that only one had been triple neg. and the other two are ER+. We are wondering if anyone else has had this diagnosis or has infomration on it?

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  • poptart
    poptart Member Posts: 101
    edited May 2011

    I think someone on the tnbc foundation site had this.  She takes tamoxifen for the hormone positive invasive cancer.

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  • Suze35
    Suze35 Member Posts: 1,045
    edited May 2011

    I had two tumors, one TN, the other very slightly ER+. I am taking Tamoxifen, even for such a small benefit, as long as I dont suffer from bad side effects. My MO thinks some tumors start as ER+ and switch to TN.

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