이하선에 발생한 악성 근상피종 1예

Abstract

Myoepithelial cells are a significant component of most types of salivary gland neoplasms, but, pure myoepitheliomas are rare, comprising less than 1% of all salivary gland tumors. Malignant myoepithelioma, or myoepithelial carcinoma, is even more rare. It occurs most frequently in the parotid gland among salivary glands, and is similar to benign myoepitheliomas. The palate is the most common intraoral site of involvement. As far as the treatment of myoepithelial carcinoma is concerned, surgical excision is the mainstay of therapy. The role of radiation therapy and chemotherapy is not yet established. We present a case of malignant myoepithelioma of the left parotid gland in a 67-year-old female patient who was treated with surgical excision followed by adjuvant radiation therapy.