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Figure 2: (a, b, and c) Microphotograph shows the tumor arranged in varying size lobules in a fibrous stroma, involving the epineurium and also extended into the endoneurium of the nerve fascicles (hematoxylin and eosin, ×100), (d) The tumor cells are large, polygonal and contain abundant granular eosinophilic cytoplasm (hematoxylin and eosin, ×200), (e and f) S-100 immunostain highlights the tumor cells (lower half) as well as the nerve (upper half), CD68 immunostain highlights the tumor cells while the nerve fascicle is negative (immunohistochemistry, ×100)

Figure 2: (a, b, and c) Microphotograph shows the tumor arranged in varying size lobules in a fibrous stroma, involving the epineurium and also extended into the endoneurium of the nerve fascicles (hematoxylin and eosin, ×100), (d) The tumor cells are large, polygonal and contain abundant granular eosinophilic cytoplasm (hematoxylin and eosin, ×200), (e and f) S-100 immunostain highlights the tumor cells (lower half) as well as the nerve (upper half), CD68 immunostain highlights the tumor cells while the nerve fascicle is negative (immunohistochemistry, ×100)