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Figure 2: (a and b) Micrograph of the tumor - (H and E, × 40) spindle cells with slender nuclei and dark eosinophilic cytoplasm are arranged in bundles. It also shows tumor infiltration into adjacent adipose tissue and skeletal muscle. (c-f) Immunohistochemistry of the tumor - negative immunostaining for CD34, CD56, S100, and SMA is seen in c-f respectively

Figure 2: (a and b) Micrograph of the tumor - (H and E, × 40) spindle cells with slender nuclei and dark eosinophilic cytoplasm are arranged in bundles. It also shows tumor infiltration into adjacent adipose tissue and skeletal muscle. (c-f) Immunohistochemistry of the tumor - negative immunostaining for CD34, CD56, S100, and SMA is seen in c-f respectively