J Korean Assoc Maxillofac Plast Reconstr Surg.
2003 Nov;25(6):591-594.
Myoepithelioma of the hard palate
- Affiliations
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- 1Department of Oral Pathology, College of Dentistry, Chosun University, Korea.
- 2Oral Histology, College of Dentistry, Chosun University, Korea.
- 3Oral and Maxillofacial Surgery, College of Dentistry, Chosun University, Korea. sgckim@chosun.ac.kr
Abstract
- Salivary gland myoepithelioma is a rare tumor accounting for less than 1% of neoplasms of the salivary glands which are usually located in parotid gland and minor salivary glands. A rare case of myoepithelioma occurred in the hard palate is reported. Histology and immunohistochemical features of this tumor are reviewed. The tumor was composed of plasmacytoid type of myoepithelial cells. These plasmacytoid cells or hyaline cells exhibited a diffuse positivity for cytokeratin AE1/3, S-100 and vimentin, but smooth muscle actin was focally positive. Immunohistochemical studies support the myoepithelial origin of this tumor. We thought that vimentin rather than smooth muscle actin might be a useful marker for myoepithelioma.
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