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Washington University Experience | NEOPLASM (SELLAR) | TTF-1-positive sellar tumor - Pituicytoma | 3K1 TTF1 Pituicytoma (Case 3) CD163 10X
3K1,2 Tumor cells do not stain for CD163, a lineage specific M2 histiocytic/microglial marker. The difference between CD163 and CD68 staining in this case may reflect the lineage specific vs lysosome/autophagosome nature of the staining. (CD163 IHC)
