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  Indian J Med Microbiol
 

Figure 1: Excision biopsy of the left thigh lesion showing (a) extensive necrosis with tumor cells arranged in sheets and cords separated by hyalinized stroma with eosinophilic cytoplasm, high nuclear as follows: cytoplasmic ratio, large pleomorphic nucleus showing prominent nucleoli with perivascular accentuation (H and E, ×10). Immunohistochemistry positive for (b) vimentin (×40); (c) epithelial membrane antigen (×40); and (d) S100 (×10) confirming the diagnosis of malignant peripheral nerve sheath tumor

Figure 1: Excision biopsy of the left thigh lesion showing (a) extensive necrosis with tumor cells arranged in sheets and cords separated by hyalinized stroma with eosinophilic cytoplasm, high nuclear as follows: cytoplasmic ratio, large pleomorphic nucleus showing prominent nucleoli with perivascular accentuation (H and E, ×10). Immunohistochemistry positive for (b) vimentin (×40); (c) epithelial membrane antigen (×40); and (d) S100 (×10) confirming the diagnosis of malignant peripheral nerve sheath tumor