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Washington University Experience | NEOPLASMS (METASTASES) | Microscopic | 65B Metastasis, lung, unusual (Case 65) Napsin-A 1.jpg
65B,C Immunohistochemically stained sections show strong reactivity for Napsin A (65B), TTF1 (65C), Pan-cytokeratin (AE1/AE3), and Cytokeratin 7.
