Myoepithelioma. A case report.

A rare case of oral myoepithelioma is reported. The tumour was composed of plasmacytoid type of myoepithelial cells. These plasmacytoid cells or hyaline cells exhibited a diffuse positivity for pancytokeratin, S-100 and vimentin in their cytoplasm. Studies have to be performed in order to find out whether the myoepithelial cells M.E. of plasmacytoid type are true M.E. cells of not.