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Washington University Experience | NEOPLASM (SELLAR) | TTF-1-positive sellar tumor - Spindle cell oncocytoma (SCO) | 5B1 Spindle cell oncocytoma-pituicytoma DDX (Case 5) TTF1 3
5B1-3 Immunohistochemistry shows strong positivity for TTF1. (TTF1 IHC).
