Squamous-cell carcinoma of Stensen's duct

A case of epidermoid carcinoma of Stensen's duct, the major duct of the parotid gland, is reported, The literature on this rare tumor is reviewed including four previously reported cases. In the current case, both the gross appearance of the tumor confined to the duct and the lack of histologic involvement of adjacent parotid tissue establish that the carcinoma arose from the duct itself, presumably following development of squamous metaplasia. The patient was alive without evidence of disease 12 months following surgery.