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. 2017 Sep;58(9):919–922.

Figure 4.

Figure 4

Neoplastic cells stain diffusely positive for GFAP (a), vimentin (b), and S-100 (c) by immunohistochemistry. Only a small number of cells’ nuclei within the tumor exhibit positive nuclear immunostaining for Olig2 (d). Bar = 100 μm.