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A benign mixed tumor with neurocytic (synaptophysin staining, (A) and astrocytic (GFAP) (F) staining, olig2 (C) staining differentiation. H&E staining (B,E) shows astrocytic differentiation (B), and typical neurocytic rosettes with perivascular pseudorosettes (E). In the Ki67 (D) staining, only very few proliferation-active cells can be recognized. (Case 1 is presented here). Abbreviations: GFAP—glial fibrillary acidic protein, H&E—haematoxylin and eosin staining.
