Case Reports in Pathology / 2020 / Article / Fig 3

Case Report

Involvement of Annexin A2 Expression and Apoptosis in Reverse Polarization of Invasive Micropapillary Carcinoma of the Breast

Figure 3

Routine immunohistochemical examination of the right breast cancer. (a) Majority of tumor cells represent a strong immunoreactivity for estrogen receptor (ER). ER immunostain. (b) Most tumor cells show a positive reaction for progesterone receptor (PGR). PGR immunostain. (c) Only a weak and heterogeneous positivity is observed in <10% of tumor cells, which are known to be negative at HercepTest score 0. HER2/neu-immunostain. (d) Approximately 30% of tumor cells are positive for Ki-67. Ki-67 immunostain. The scale bars indicate 100 μm.
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