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Salivary duct carcinoma with HER-2 and androgen receptor. (A) Salivary duct carcinoma, hematoxylin and eosin (H&E) stain, 20×; (B) androgen receptor, 20×; (C) HER-2 negative (0+), 20×; (D) salivary duct carcinoma, H&E, 10×; (E) androgen receptor, 20×; (F) HER-2 positive (3+), 20×.
