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Table 1 Immunohistochemical markers for the primary bilateral invasive ductal breast cancer and metastases

From: Invasive ductal breast cancer metastatic to the sigmoid colon

  The right breast cancer The left breast cancer The left ovarian metastasis The sigmoid colonic metastasis
ER 15% estrogen receptor positive 20% estrogen receptor positive 20% estrogen receptor weak positive 0 estrogen receptor positive
PR 10% progesterone receptor positive 5% progesterone receptor positive 0 progesterone receptor positive 0 progesterone receptor positive
HER-2 negative negative negative negative
p53 positive positive positive positive