目的:探讨甲状腺癌的临床诊治新特点。方法:回顾性分析复旦大学附属肿瘤医院头颈外科2006年收治的572例甲状腺癌的临床资料。结果:在该组样本中，乳头状癌531例（占92.8％）。中央区淋巴结转移301例（占52.6％），侧颈区淋巴结转移117例（占20.5％），远处转移共8例。超声对甲状腺癌原发灶诊断的准确率为88.2％。甲状腺微癌204例（占35.7％），其中167例为普查时超声发现。结论:颈部淋巴结转移率与原发灶直径呈正相关。甲状腺微癌逐渐增多，这可能是甲状腺癌发病率增高的主要原因。

Objective:To discuss the new clinical characteristics of thyroid cancer. Methods:Data were reviewed retrospectively from 572 thyroid cancer medical records of Head and Neck Surgery Department in Shanghai Cancer Hospital in 2006. Results:There were 531 cases (92.8％) of papillary thyroid carcinoma,301 cases had level VI lymph node metastasis（52.6％）,117 cases had side neck metastasis（20.5％）,8 cases had distant metastasis.The veracity of the Ultrasound in thyroid cancer was 88.2%.There were 204 cases （35.7％）of thyroid microcarcinoma,167 cases of them were found by Ultrasound. Conclusion:The metastatu rate of cervical lymph node metastasis has the positive relationship with the size of the primary tumor.The case of thyroid microcarcinoma is increasing.It may be the most important reason of thyroid cancer's increasing incidence.