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关于头颈部鳞状细胞癌患者中临床阴性的颈部是否需要治疗存在很大争论。对临床阴性的颈部作出各种治疗计划的共同依据是看区域性转移的可能性,此种可能性或风险因素的判断根据是看选择性颈廓清的阳性淋巴结发生率及未经治疗的颈部的复发率。文献中的隐蔽转移发生率浮动在19～66%之间,平均约30%,是否隐蔽转移发生率随着肿瘤体积的增大而增加,尚未有定论。对预期性记录5年已接受选择性颈部放射疗法的连续254例头颈部鳞状细胞癌患者作了评价。所有患者均为原发灶一期控制而颈部临床阴性,有47%患者有T_(3～4)肿
There is much debate as to whether a clinically-negative neck needs treatment in patients with squamous cell carcinoma of the head and neck. The common basis for making various treatment plans for a clinically negative neck is to look at the likelihood of a regional metastasis based on the incidence of positive lymph nodes clear of the selective neck and the untreated neck Department of the recurrence rate. The incidence of occult metastasis in the literature fluctuates between 19% and 66% with an average of about 30%. It is yet to be concluded whether the incidence of occult metastasis increases with tumor volume. A total of 254 consecutive patients with squamous cell carcinoma of head and neck squamous cell carcinoma who underwent selective neck radiotherapy for 5 years were prospectively documented. All patients were primary stage control and neck clinical negative, 47% of patients had T_ (3 ~ 4) swollen