原发不明的颈部淋巴结转移性鳞癌占头颈癌4～5％。为明确最初外科治疗对这些病人颈部控制率与生存率的影响,对54例原发不明的颈部淋巴结转移性鳞癌及未分化癌的病人进行了回顾性研究。全部病人就诊时均有持续1～12个月的颈部无痛性肿块。累及右颈26例 The primary unclear cervical lymph node metastatic squamous cell carcinoma accounts for 4 to 5% of head and neck cancers. To clarify the effect of initial surgical treatment on neck control and survival in these patients, retrospective studies were performed on 54 patients with unprovoked cervical lymph node metastatic squamous cell carcinoma and undifferentiated carcinoma. All patients had a painless cervical neck that lasted from 1 to 12 months. Involving the right neck in 26 cases