1. (A) Hematoxylin and Eosin slide of a case of invasive mammary carcinoma with apocrine morphology; The apocrine cells are negative for estrogen receptor [ER] (B) and progesterone
receptor [PR] (C) but positive for androgen receptor [AR] (D);
note the presence of ER and PR expression in adjacent normal ducts.
apocrine breast cancer
![apocrine breast cancer](https://blog.bjbms.org/wp-content/uploads/2017/01/apocrine-breast-cancer.jpg)
1. (A) Hematoxylin and Eosin slide of a case of invasive mammary carcinoma with apocrine morphology; The apocrine cells are negative for estrogen receptor [ER] (B) and progesterone receptor [PR] (C) but positive for androgen receptor [AR] (D); note the presence of ER and PR expression in adjacent normal
ducts.
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