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Figure 3: Immunohistochemical (IHC) results. (a) Diffuse vimentin positivity (DABx200). (b) Prominent areas exhibiting EMA positivity (DABx200). Inset: EMA highlighting cytoplasmic membrane and processes of spindly cells (Diaminobenzidine ×1000). (c) CD56 positivity (DABx400). (d) Focal SMA positivity (DABx200). (e) CD34 negativity (DABx400). (f) MIB1 highlighting 50% tumor nuclei (DABx400).

Figure 3: Immunohistochemical (IHC) results. (a) Diffuse vimentin positivity (DABx200). (b) Prominent areas exhibiting EMA positivity (DABx200). Inset: EMA highlighting cytoplasmic membrane and processes of spindly cells (Diaminobenzidine ×1000). (c) CD56 positivity (DABx400). (d) Focal SMA positivity (DABx200). (e) CD34 negativity (DABx400). (f) MIB1 highlighting 50% tumor nuclei (DABx400).