There are few reports on malignant tumors of an accessory parotid gland (APG) , and even fewer reports on salivary duct carcinoma (SDC) of APG. We present herein three cases of SDC arising from APG and a review of the literature. All three patients underwent surgical resection, and none showed preoperative facial nerve paralysis. However, resection of the buccal branch of the facial nerve was required in all patients. Neck dissection was performed for late cervical lymph node metastasis in two

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... atients, and postoperative radiotherapy was performed in the two patients with tumor invasion close to the resection margin or metastatic neck lymph node with extranodal extension. The primary lesion and neck were controlled in all three patients. However, distant metastasis was observed in two patients. There are few reported cases of SDC arising from APG. It is important to consider appropriate treatment management.