颈淋巴结转移是头颈鳞状细胞癌患者预后不良最显著的单因素。对于所有头颈肿瘤而言 ,出现同侧颈淋巴转移时 ,患者生存率会降低 5 0 % ;若出现对侧或双侧颈淋巴结转移 ,其预后会再进一步降低 5 0 %。此外 ,伴颈淋巴结转移者更易出现远处转移 ,也易发生局部复发。尽管广泛地使用 Cervical lymph node metastasis is the most significant single factor in the prognosis of patients with head and neck squamous cell carcinoma. For all head and neck cancers, there is a 50% reduction in patient survival with ipsilateral cervical lymph node metastases, and a 50% reduction in the prognosis if contralateral or bilateral cervical lymph node metastases occur. In addition, patients with cervical lymph node metastasis more prone to distant metastasis, but also prone to local recurrence. Although widely used