台耳醫誌

Epithelial-myoepithelial carcinoma (EMC) is an uncommon, low-grade salivary gland neoplasm. It accounts for approximately 1% of all salivary gland tumors. The mean age of patients at diagnosis is 60 years, and 60% of patients with EMC are female. The most common sites are the parotid gland, submandibular gland, and minor salivary gland. We report 2 cases of salivary gland EMC. The first case is of a 59-year-old woman who presented with a left parotid mass. Computed tomography of the neck showed a lobulated heterogeneous enhanced mass in the superficial lobe. The Patient received surgical resection and postoperative radiotherapy. The second case is of a 66-year-old man who was diagnosed as having right hard palate EMC. The patient received operation only; he has been undergoing follow-up at an outpatient clinic, and no recurrence has yet been reported. This article reminds us that salivary gland EMC is an uncommon disorder, presented with a painless mass in salivary gland location. Surgery is the first-line treatment. Radiotherapy can be considered in the positive or close margin, tumor spillage, perineural invasion, or patients who are not surgical candidates. Prognosis is good, with a 10-year disease-specific survival rate exceeding 90%.(J Taiwan Otolaryngol Head Neck Surg 2021; 56:268-272)