Myoepithelioma of the gingiva. Report of a case.
Myoepithelioma is a rare form of salivary gland tumor composed entirely of myoepithelial cells. It represents about 1 to 1.5% of all salivary gland tumors and is most frequently located in the parotid. The authors present a case of myoepithelioma of the gingiva. The tumor presented a focal strong positivity for cytokeratins, a diffuse positivity for S-100 protein, and a rare focal positivity for actin. No duct formation was observed. Myoepithelioma must be differentiated from several benign and malignant epithelial and mesenchymal tumors.
Piattelli
A
A
Department of Oral Medicine and Pathology, Dental School, University of Chieti, Italy. apiattelli@unich.it
Fioroni
M
M
Rubini
C
C
D005260:Female; D005887:Gingival Neoplasms / Q000473:pathology*; D006801:Humans; D008334:Mandible / Q000473:pathology; D008875:Middle Aged; D009208:Myoepithelioma / Q000473:pathology*; D012468:Salivary Gland Neoplasms / Q000473:pathology*; D012470:Salivary Glands, Minor / Q000473:pathology*