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(A) Fine-needle aspiration of a salivary duct carcinoma is shown. By immunohistochemistry, the salivary duct carcinoma cells are (B) negative for nuclear receptor subfamily 4 group A member 3 (NR4A3) and (C) show patchy, membranous staining for DOG1 that is focally circumferential (bottom). The tumor cells were positive for androgen receptor by immunohistochemistry on the surgical resection (H&E stain; original magnification ×200 in A-C).
