Plasmacytoid myoepithelioma of the soft palate: a review of the literature and report of a case with immunohistochemical findings.

Myoepitheliomas of salivary glands are rare neoplasms, accounting for less than 1% of all salivary gland tumors. They are classified into four cell types: epithelioid, spindle, clear, and plasmacytoid. Among them, the plasmacytoid cell type appears to have a predilection for the oral cavity, especially the palate. We presented a 32-year-old man with plasmacytoid myoepithelioma arising in the soft palate, together with a brief discussion of the clinicopathologic features and differential diagnosis in the light of the literature.