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Washington University Experience | NEOPLASMS (PINEAL) | Pineoblastoma | 4E1 Pineoblastoma (Case 4) GFAP 1.jpg
4E1,2 The tumor cells are negative for glial fibrillary acidic protein (GFAP), although in some areas the tumor cells are separated by glial processes. (GFAP IHC)
