VIM and neoplasm: The studies with immunohistochemical technique (IHC) support the epithelial nature of the mesenchymal component and both neoplasia components possess immunoreactivity for cytokeratin, vimentin, and epithelial membrane antigen (EMA) in most of the cases [7, 8] and the lack of other antibodies, as S-100 or smooth muscle actin alpha [6].