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Fig. 4 | Chinese Neurosurgical Journal

Fig. 4

From: Schwannoma of the 6th nerve: case report and review of the literature

Fig. 4

Histopathologic images. a, b Histological images revealed a cellular schwannoma (original magnification, ×100 and ×200). a (×100) The cells were densely distributed in most of the regions under low magnification. Hyalinized blood vessels can be visible. b (×200) In the densely cellular areas, the nuclei were elongated and the cell boundary is not clear, nuclear chromatin increased, nuclei had moderate atypia, but mitotic activity is low, <4/10 HPF. c Immunohistochemical staining for CD34 was negative (not consistent with hemangiopericytoma; original magnification, ×200). d Diffuse strong positivity staining for S-100 protein (original magnification, ×200)

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