在甲状腺癌中约90%为分化型癌,由于其特殊的生物学特性,误诊率较高,国内外文献报道不一,有报道误诊率甚至达77%[1]。我院1990年1月~2006年3月共收治分化型甲状腺癌86例,术前、术中漏误诊46例,误诊率53.5%。现分析漏误诊原因如下。1临床资料1·1一般资料86例中,男27例,女59例;年 About 90% of thyroid cancer is differentiated carcinoma. Because of its special biological characteristics, the misdiagnosis rate is high, which has been reported in the literature both at home and abroad. The reported rate of misdiagnosis is as high as 77% [1]. 86 cases of differentiated thyroid cancer were treated in our hospital from January 1990 to March 2006. There were 46 misdiagnosed cases before and during the operation, the rate of misdiagnosis was 53.5%. Misdiagnosis of the reasons are as follows. 1 Clinical data 1.1 General Information 86 cases, 27 males and 59 females;