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Washington University Experience | NEOPLASMS (NEURONAL) | Papillary Glioneuronal Tumor (PGNT) | 2B2 Papillary Glioneuronal Tumor (PGNT, Case 2) GFAP 2.jpg
The tumor is strongly and diffusely positive for glial fibrillary acidic protein (GFAP) surrounding and closely applied to the surface of the collagenized papillae; the tumor cells are also strongly positive for S100 protein (not shown). (GFAP IHC)
