随着头颈癌局部和区域控制率的提高,远处转移已成为患者死亡越来越多见的原因。作者对727例头颈部鳞癌病例进行回顾分析,旨在明确以下问题:①头颈部鳞癌的远处转移率是多少?②患者初诊时的临床表现或治疗中,哪些因素可用于预测远处转移?③肿瘤确诊后多长时间发生远处转移?④影响远处转移速度 With the increase of local and regional control rates of head and neck cancer, distant metastases have become the cause of more and more deaths of patients. The authors conducted a retrospective analysis of 727 cases of head and neck squamous cell carcinoma to clarify the following questions: 1 What is the distant metastasis rate of head and neck squamous cell carcinoma? 2 What are the factors that can be used for predicting the clinical manifestations or treatment at the time of initial diagnosis? Distant metastasis? 3 How long does the distant metastasis occur after diagnosis? 4 Affects distant metastasis