Figure 3: (a) Immunostaining for cytokeratin shows positive cytoplasm in epithelioid cells (Envision method 1:100) ×400. (b) Immunostaining of Desmin, displaying cytoplasm positive (Envision method 1:100) ×200. (c) Immunostaining of MyoD1 displaying positive nuclei (Envision method 1:50) ×400. Immunostaining for myogenin displaying positive nuclei (Envision method 1:25) ×400