Management and prognosis of cancers in the accessory parotid gland

Tumors in the accessory parotid gland (APG) are uncommon. Among all parotid tumors, the incidence rate of APG tumors ranges from 1% to 8%, and among all APG tumors, the incidence rate of APG cancers ranges from 26% to 50%.1,2 Fewer than 200 APG tumors have been reported in the English-language literature to date, including about 60 malignant lesions.3–8 Because of the rarity of APG cancers, few studies have been performed to systematically analyze the management and prognosis of APG cancers. Therefore, the current study was performed to analyze the clinical management of APG cancer and possible risk factors for disease-related death.