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Washington University Experience | NEOPLASMS (GLIAL) | Gliosarcoma | 7B1 Gliosarcoma (Case 7) B GFAP 4X
7B1,2 GFAP is strongly reactive but only in patches of the tumor cells. Notice the largely non-reactive inter-islands do have some individual spindled cells with GFAP immunoreactivity (GFAP IHC)
