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Washington University Experience | NEOPLASM (SELLAR) | TTF-1-positive sellar tumor - Granular cell Tumor | 1G1 Granular Cell Tumor (Case 1) 1 S100 WM
1G1,2 The same area shown in 1A1 stained for S100. GCT are variably immunoreactive for S100; however, in this case S100 immunoreactivity is surprisingly limited to scattered labeled cells (S100 IHC)
