A case of squamous cell carcinoma originating from Stensen's duct

Some of the tumors in the buccal region arise from Stensen’s duct or the accessory parotid gland. Both of them, especially Stensen’s duct, are rare. However, it is often difficult to distinguish the origin ; we think that there is a histopathologic tendency in each origin. According to previous reports, the most frequent types of the tumor arising from Stensen’s duct and the accessory parotid gland are squamous cell carcinoma and mucoepidermoid carcinoma, respectively. We report another case of primary squamous cell carcinoma arising from Stensen’s duct. A 71-year-old man suffering from swelling in his right cheek was referred to our hospital. We located the tumor arising from the accessory parotid gland and performed local resection penetrating the buccal region from the skin of the cheek to the buccal mucosa and total neck dissection. Following histopathological examination, we generally diagnosed the tumor as primary squamous cell carcinoma originating from Stensen’s duct.