Souliou CE, Tzermpos F, Argyris P, Tosios K. Plasmacytoid Myoepithelioma of the Hard Palate: Case Report.
Acta Stomatol Croat 2017;
51:152-156. [PMID:
28827853 PMCID:
PMC5548221 DOI:
10.15644/asc51/2/9]
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Abstract
Background
Myoepitheliomas are uncommon salivary gland neoplasms consisting entirely or predominantly of cells with myoepithelial phenotype. They commonly involve the parotid gland and the minor salivary glands of the palate.
Aim
A case of plasmacytoid myoepithelioma of the hard palate is described.
Case description and results
A 55-year-old woman presented to her oral surgeon with a tumor on the hard palate. Microscopic examination showed a well-circumscribed but non-encapsulated tumor, consisting mostly of plasmacytoid cells in a loose fibrovascular stroma. Neoplastic myoepithelial cells showed immunoreactivity for S-100 protein, CK AE1/AE3 (Figure 5b), GFAP, calponin, and CD138/Syndecan-1. Total excision of the tumor under local anesthesia was performed and no recurrence was noted 14 months after treatment.
Conclusions
Since plasmacytoid myoepithelioma is uncommon, minor salivary glands, its immunohistochemical features, management and prognosis should be further investigated.
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