PMC5464382_01
Histological appearance of the tumour; neoplastic spindle cells are arranged in short bundles, occasionally with nuclear palisades (asterisks). Haematoxylin and eosin stain (x 20 magnification)
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The mass was composed of spindle cells arranged in short bundles, occasionally with a storiform pattern and nuclear palisades (Figure 1).
Positive immunohistochemical staining of neoplastic cells for S-100 (x 20 magnification)
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Positive immunohistochemical staining of neoplastic cells for glial fibrillary acidic protein (x20 magnification)
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