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. Author manuscript; available in PMC: 2022 Jul 6.
Published in final edited form as: Arch Pathol Lab Med. 2021 Jun 1;145(6):728–735. doi: 10.5858/arpa.2020-0293-OA

Figure 3.

Figure 3.

Triple-positive breast carcinoma and associated DCIS in pretreatment core biopsy (A) shows strong and diffuse staining for (B) ER and (C) PR, and (D) 3+ HER2 staining. E, Postneoadjuvant excision shows residual invasive carcinoma with treatment effect and positive staining with (F) ER, (G) PR, and (H) HER2 (hematoxylin-eosin, original magnification×10 [A and E]; original magnification ×10 [B, C, D, F, G, and H]). Abbreviations: DCIS, ductal carcinoma in situ; ER, estrogen receptor; PR, progesterone receptor.