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Washington University Experience | NEOPLASMS (EMBRYONAL) | Medulloblastoma, Histologically Defined | Extensive Nodularity (MBEN) | 6F3 Medulloblastoma, desmoplastic (Case 6) MIB1 1.jpg
Ki-67 immunoreactivity ranges from low within the nodules to very high in the internodular areas. ---- Not shown: Immunohistochemical staining for GFAP highlights scattered cells with thin processes, which are frequently centered within the nodules.