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Washington University Experience | NEOPLASMS (EMBRYONAL) | Medulloblastoma, Histologically Defined | Classic Subtype | 22C Medulloblastooma (Case 22) GFAP 1
Glial fibrillary acidic protein (GFAP) staining highlights neoplastic cells with glial differentiation, reactive astrocytes as well as a population of cells that are indeterminate. FISH results show the presence of isochromosome i(17q) which is a characteristic finding in these tumors.
