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Washington University Experience | NEOPLASM (SELLAR) | TTF-1-positive sellar tumor - Spindle cell oncocytoma (SCO) | 5A4 Spindle cell oncocytoma-pituicytoma DDX (Case 5) H&E 6
In some areas, the tumor cells are more spindle-shaped and arranged in short fascicles in a storiform pattern. In other areas, the cells are more epithelioid with more abundant cytoplasm and nuclei with more prominent nucleoli.
