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. 2022 Oct 29;17(4):651–655. doi: 10.1055/s-0042-1757726

Fig. 4.

Fig. 4

Histological and immunohistochemical specimens. The hematoxylin and eosin-stained section ( A ) showed the neoplastic infiltrate within the subarachnoid space (original magnification 100 × ). A higher magnification ( B ) revealed the neoplastic cells with large, round-oval nuclei, and scant cytoplasm (original magnification 400 × ). The immunohistochemical staining documented the positivity for synaptophysin ( C ) and a high proliferation index ( D ).