198 9- 0 1/ 2 0 0 0 - 0 6我们手术治疗甲状腺癌 38例 ,15例误诊为甲状腺良性肿瘤 ,其中 3例行 2次手术。我们将误诊原因及对减少误诊 ,避免再次手术讨论如下。1　临床资料　　本组男 2例 ,女 13例 ,年龄 40岁以上 4例 ,17岁～ 38岁 11例。病程 2个月～ 9a,1a以下 9例。原发性 198 9- 0 1 / 2 0 0 0 - 0 6 We treated thyroid cancer in 38 cases. 15 cases were misdiagnosed as thyroid benign tumors, of which 3 were performed 2 times. We will misdiagnose the reasons and reduce misdiagnosis to avoid reoperation as discussed below. 1 Clinical data There were 2 males and 13 females in this group, 4 patients aged 40 years or older, and 11 patients aged 17 to 38 years. The course of the disease was 2 months to 9 years, and 9 cases were less than 1 year. Primary