Myoepithelioma: Review of the literature and report of a case with ultrastructural confirmation

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Abstract

The myoepithelioma is a rare salivary gland tumor composed nearly exclusively of myoepithelial cells. A case occurring on the palate of a 22-year-old man is reported. Electron microscopic findings of occasional desmosomes, a basal lamina associated with the plasma membrane, and perinuclear cytoplasmic filaments confirmed the diagnosis. The myoepithelioma appears to resemble the pleomorphic adenoma clinically and may be a developmental variant of the pleomorphic adenoma.

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Assistant Professor of Oral Biology and Pathology.

∗∗

Assistant Professor of Surgery.

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