title: Primary squamous cell carcinoma of the parotid gland.
abstract: 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 metastic squamous cell carcinomas must be excluded.
mesh_terms: D000368:Aged; D002294:Carcinoma, Squamous Cell / Q000453:epidemiology / Q000473:pathology*; D005260:Female; D006801:Humans; D008297:Male; D008824:Michigan; D008875:Middle Aged; D010307:Parotid Neoplasms / Q000453:epidemiology / Q000473:pathology*; D012189:Retrospective Studies