Back to Search
Start Over
Myoepithelioma of the upper lip
- Source :
- Journal of Dental Sciences, Vol 12, Iss 1, Pp 98-102 (2017), Journal of Dental Sciences
- Publisher :
- Published by Elsevier B.V.
-
Abstract
- Myoepithelioma is a rare form of salivary gland tumor composed entirely of myoepithelial cells. This tumor was formerly considered to be a subtype of pleomorphic adenoma; however, in the 1991 World Health Organization classification, it is listed as an independent entity. The most favorable site of occurrence of myoepithelioma is the parotid gland. Here, we report an extremely rare case of myoepithelioma of the upper lip. A 56-year-old woman presented with a painless mass on her upper lip. Magnetic resonance imaging revealed a 23 mm × 18 mm well-defined ovoid tumor. A benign minor salivary gland tumor was clinically suspected, and the patient underwent complete resection of the tumor under general anesthesia. The tumor was histopathologically diagnosed as a benign myoepithelioma of the minor salivary gland. Immunohistochemically, the tumor cells were positive for S-100 protein, AE1/AE3, CAM5.2, CK7, vimentin, and calponin, confirming the morphologic diagnosis of myoepithelioma. The patient's postoperative clinical course was uneventful, and satisfactory results were obtained both functionally and esthetically. To the best of our knowledge, this is the sixth case of myoepithelioma of the upper lip reported in English-language research.
- Subjects :
- Pathology
medicine.medical_specialty
Myoepithelioma
Calponin
Case Report
Vimentin
Benign Myoepithelioma
upper lip
Pleomorphic adenoma
03 medical and health sciences
0302 clinical medicine
stomatognathic system
minor salivary gland tumor
medicine
General Dentistry
biology
Salivary gland
Dentistry(all)
business.industry
Myoepithelial cell
myoepithelioma
030206 dentistry
medicine.disease
Parotid gland
lcsh:RK1-715
stomatognathic diseases
medicine.anatomical_structure
030220 oncology & carcinogenesis
lcsh:Dentistry
biology.protein
business
Subjects
Details
- Language :
- English
- ISSN :
- 19917902
- Database :
- OpenAIRE
- Journal :
- Journal of Dental Sciences
- Accession number :
- edsair.doi.dedup.....c1e3454334e582d2db2f8d38949a7a67
- Full Text :
- https://doi.org/10.1016/j.jds.2013.02.020