title: Cervical lymph node metastases from an unknown primary.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002294:Carcinoma, Squamous Cell / Q000175:diagnosis / Q000628:therapy; D005260:Female; D006258:Head and Neck Neoplasms / Q000175:diagnosis* / Q000628:therapy; D006801:Humans; D008175:Lung Neoplasms / Q000175:diagnosis; D008207:Lymphatic Metastasis / Q000175:diagnosis* / Q000628:therapy; D008297:Male; D008875:Middle Aged; D037981:Neck Dissection; D012075:Remission, Spontaneous; D012189:Retrospective Studies