Cervical metastases from an unknown primary tumor.
D006258:Head and Neck Neoplasms / Q000401:mortality / Q000532:radiotherapy*; D006801:Humans; D008207:Lymphatic Metastasis / Q000401:mortality / Q000532:radiotherapy*; D010166:Palliative Care; D011379:Prognosis; D011879:Radiotherapy Dosage; D011882:Radiotherapy, High-Energy; D014056:Tomography, X-Ray