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Figure 2: Pathological and immunohistochemical examination of the primary tumor after operative interventions. (a) A low-power view of the tumor showing necrosis (H and E, ×20); (b and c) immunohistochemical results showing MIB index more than 15 and tumor cells positive for glial fibrillary acidic protein (×20); (d) intramuscular invasion by tumor cells (H and E, ×20); (e) tumor cell necrosis and subcutaneous fat nodules (H and E ×20); (f) immunohistochemical results showing tumor cells positive for glial fibrillary acidic protein (×20)

Figure 2: Pathological and immunohistochemical examination of the primary tumor after operative interventions. (a) A low-power view of the tumor showing necrosis (H and E, ×20); (b and c) immunohistochemical results showing MIB index more than 15 and tumor cells positive for glial fibrillary acidic protein (×20); (d) intramuscular invasion by tumor cells (H and E, ×20); (e) tumor cell necrosis and subcutaneous fat nodules (H and E ×20); (f) immunohistochemical results showing tumor cells positive for glial fibrillary acidic protein (×20)