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. Author manuscript; available in PMC: 2016 Mar 4.
Published in final edited form as: Hum Pathol. 2015 Sep 21;47(1):52–63. doi: 10.1016/j.humpath.2015.09.003

Fig. 2.

Fig. 2

Carcinoma PD-L1 expression in a patient with metastatic breast carcinoma. This patient's triple-negative primary breast carcinoma (A, H&E) was PD-L1− (B), but the lung metastasis (C, H&E) was PD-L1+ (D).