Squamous cell carcinoma of the neck of unknown origin--report of 4 cases.
D000368:Aged; D002294:Carcinoma, Squamous Cell / Q000175:diagnosis* / Q000628:therapy; D005260:Female; D006258:Head and Neck Neoplasms / Q000175:diagnosis / Q000556:secondary* / Q000628:therapy; D006801:Humans; D008297:Male; D008875:Middle Aged