Malignant myoepithelioma. Clinicopathological and immunohistochemical characteristics.
A malignant myoepithelioma arising in the submucosal accessory glands of the oral cavity of a 23-year-old woman is reported. The patient was very young compared to the cases in the literature, and the tumour had an unusual vestibular location. A false diagnosis of pleomorphic adenoma had been made by fine needle aspiration biopsy. The surgery comprised a wide tumour excision, but neck dissection was not indicated. The final histologic diagnosis was malignant myoepithelioma. Immunohistochemically putative myoepithelial markers were highly expressed.
Suba
Zs
Z
Department of Oral and Maxillofacial Surgery, Semmelweis University, Mária str. 52, 1085 Budapest, Hungary. suba@szajseb.sote.hu
Németh
Zs
Z
Gyulai-Gaál
Sz
S
Ujpál
M
M
Szende
B
B
Szabó
Gy
G
D000199:Actins / Q000032:analysis; D000328:Adult; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007150:Immunohistochemistry; D009208:Myoepithelioma / Q000473:pathology*; D009418:S100 Proteins / Q000032:analysis; D012468:Salivary Gland Neoplasms / Q000473:pathology*; D012470:Salivary Glands, Minor / Q000473:pathology*
D000199:Actins; D009418:S100 Proteins