• Primary squamous cell carcinoma of the parotid gland occurs infrequently. A retrospective study at the University of Michigan indicates an incidence of 0.3% for all parotid tumors during a 25-year period. This conforms to the data presented by other large series. Before a diagnosis of primary squamous cell carcinoma can be made, mucoepidermoid carcinomas and metastatic squamous cell carcinomas must be excluded.
(Arch Otolaryngol 102:355-357, 1976)