Plasmacytoid Myoepithelioma of the Palate with Rapid Growth: A Case Report
نویسنده
چکیده
Myoepitheliomas are benign tumors which account for less than 1% of all salivary gland tumors. In this article, we report the clinical, pathologic, and immunohistochemical features of plasmacytoid myoepithelioma of the hard palate in a 73-year-old man having a painless hard palate mass with progressive growth for one month who was admitted in Alzahra Hospital of Isfahan University of Medical Sciences. The patient underwent a complete surgical resection of the tumor. Light microscopy showed a nodule with sharp margins of large cells with plasmacytoid aspect presenting round eccentric nuclei and an abundant and homogenous eosinophilic cytoplasm arranged in sheets and groups separated by an abundant, loose, myxoid and hyalinized matrix. Immunohistochemistry was performed on formalin-fixed and paraffin-embedded tissue with a panel of immunohistochemical markers comprising cytokeratin (CK), vimentin, S100, actin and EMA. Tumor cells showed strong and diffuse positivity for S100 and also CK, vimentin, and actin, but confirming the myoepithelial origin of the tumor, EMA immunostaining was negative.
منابع مشابه
Plasmacytoid Myoepithelioma of the Palate with Rapid Growth: A Case Report
Myoepitheliomas are benign tumors which account for less than 1% of all salivary gland tumors. In this article, we report the clinical, pathologic, and immunohistochemical features of plasmacytoid myoepithelioma of the hard palate in a 73-year-old man having a painless hard palate mass with progressiv...
متن کاملPlasmacytoid myoepithelioma of the palate. Report of one case and review of the literature.
INTRODUCTION Myoepithelioma is a benign neoplasm of salivary glands, represents 1.5 % of all salivary glands neoplasm. The plasmacytoid myoepithelioma from palate salivary glands is considered as a rare entity, at date it has been reported 14 cases. It is present one case of plasmacytoid myoepithelioma of palate. CASE REPORT A Hispanic female of 28 years old presented a not-ulcerate, painless...
متن کاملPlasmacytoid 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 so...
متن کاملPlasmacytoid Myoepithelioma of the Hard Palate: Case Report
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 ...
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Myoepithelioma is a rare benign tumor of the salivary glands and is usually seen in the parotid gland and the minor salivary glands. It was once considered to be a type of pleomorphic adenoma (PA), but myoepitheliomas are today believed to be relatively aggressive tumors. Myoepitheliomas are most common in young adults between the ages of 30 and 50 and there are very few cases reported in indiv...
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