Objective To determine the long-term outcomes of cN0 papillary thyroid carcinoma without elective central compartment neck dissection. Methods The clinical data of 180 patients with clinically lymph node negative papillary thyroid carcinoma who were treated in our center between 2000 and 2005 were retrospectively analyzed. All of these patients did not receive elective central compartment neck dissection. Clinicopathological characteristics including gender,age,surgical range,pathologic type,tumor size,and extrathyroidal extension(ETE)or not were collected. Results After a median follow-up period of 90 months,only one patient died of stroke without tumor. Sixteen patients had tumor recurrence:seven patients had a recurrent disease in residual thyroid tissue,two in the thyroid bed,six in central compartment,eight in lateral cervical compartment,and one in lung. The 10-year overall survival,disease-specific survival,and recurrence-free survival was 99.4%,100%,and 87.9%,respectively. The 10-year accumulative lymph node recurrence rate in central compartment and lateral compartment was 7.8% and 7.0%,respectively. ETE was an independent risk factor for central compartment lymph node recurrence. Male gender(P=0.010)and ETE(P=0.028)were independent risk factors for lateral compartment lymph node recurrence. Conclusions The prognosis of patients with cN0 papillary thyroid carcinoma without elective central compartment neck dissection is good after ten years of follow-up. Male gender and ETE are independent risk factors for lateral compartment lymph node recurrence.%目的 总结cN0甲状腺乳头状癌(PTC)未行选择性中央区淋巴结清扫的转归.方法 回顾性分析中国医学科学院肿瘤医院2000年1月至2005年12月未行选择性中央区淋巴结清扫的180例颈部阴性的PTC患者的临床资料,包括性别、年龄、手术方式、组织类型、原发灶大小及是否被膜外侵犯等.结果 中位随访时间90个月.180例PTC患者中,1例死于非肿瘤因素;共计16例发生复发,其中残叶复发7例,局部复发2例,中央区淋巴结复发6例,侧颈区淋巴结复发8例,肺转移1例.10年总体生存率为99.4%,疾病特异性生存率为100%,无复发生存率为87.9%,中央区淋巴结累积复发率为7.8%,颈侧区淋巴结累积复发率为7.0%.甲状腺被膜外侵犯是中央区淋巴结复发的独立危险因素,男性(P=0.010)和甲状腺被膜外侵犯(P=0.028)是颈侧区淋巴结复发的独立危险因素.结论 未行选择性中央区淋巴结清扫的cN0 PTC患者,经过10年随访,预后良好,男性和甲状腺被膜外侵犯是颈侧区淋巴结复发的独立危险因素.
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