Plasmocytoid myoepithelioma of minor salivary glands: ultrastructural analysis of four cases

In general, myoepithelioma is a rare salivary gland tumor. Four cases of plasmacytoid myoepithelioma of the minor salivary glands, with ultrastructural confirmation, are reported. Clinical examinations of these cases revealed gradually growing, protruding masses. The main site of involvement was the hard palate [2 cases]