Methods The data of 256 cases with thyroid tumor from Jan 2000 to Oct 2005 were analyzed retrospectively. The anatomic feature,injury and prevention of RLN were discussed.

• 方法回顾分析2000年1月~2005年10月256例甲状腺手术的临床资料,常规显露RLN201例(211条),不显露RLN 55例,并对RLN解剖特点、损伤情况和预防进行分析。