甲状腺癌临床上诊断比较困难 ,对 1989～ 2 0 0 1年我们诊治的 9例误诊甲状腺癌患者的临床资料进行回顾性分析 ,以减少误诊误治率。1　临床资料1.1　一般资料　男 3例 ,女 6例 ,男女之比为 1∶ 2 ;年龄17～ 4 2岁 ,平均 35岁 ,病程 2～ 4 8个月 ,平均 18个月。1.2　临床表现　 The clinical diagnosis of thyroid cancer is more difficult. The clinical data of 9 cases of misdiagnosed thyroid cancer treated in our hospital from 1989 to 2001 were analyzed retrospectively to reduce the misdiagnosis and misdiagnosis rate. 1 Clinical data 1.1 General Information 3 males and 6 females, male to female ratio of 1: 2; aged 17 to 42 years old, with an average of 35 years of age, duration 2 to 48 months, an average of 18 months. 1.2 clinical manifestations