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Washington University Experience | NEOPLASMS (METASTASES) | Microscopic | 52C1 Metastasis, large cell neuroendocrine CA (Case 52) SYN 2.jpg
52C1,2 Immunohistochemistry shows the neoplastic cells are positive for synaptophysin (52C1), TTF1, and chromogranin (52C2). The neoplastic cells are negative for mucicarmine, and CK5/6.
