Sarcomatoid (Spindle Cell) Carcinoma of Tongue: A Report of Two Cases

Figure 4

Case two: histopathology of the lesion. (a-b) Hematoxylin-eosin staining of CS. IHC staining for cytokeratin AE1/AE3 (c-d); intense staining was observed in all epithelial cells, and a diffuse staining in spindle cells. Vimentin staining (e-f) shows intense expression of epithelial neoplastic cells and spindle component. EMA intense expression in epithelial cells and weak staining for spindle cells (g-h). No expression was observed in the neoplastic cells for S-100 (i-j) or smooth muscle actin alpha (k-l).

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