47例甲状腺疾病超声漏、误诊的原因分析

目的分析超声诊断甲状腺疾病的漏、误诊原因。方法对47例被超声漏诊和误诊的甲状腺疾病病例进行超声声像图与病理诊断的回顾性对照分析，寻找超声漏、误诊的主、客观原因。结果超声诊断甲状腺疾病672例，误诊25例，误诊率3．85％，漏诊22例，漏诊率3．4％。漏、误诊的主要原因是多源性结节并存、癌灶太小、部分结节声像图表现不典型、缺乏对临床资料的了解和经验不足等。结论高频彩超对甲状腺疾病具有较高的诊断价值，但并存的疾病可能被部分忽略，对微小甲状腺癌的诊断仍有局限性。

Analysis of misdiagnosed thyroid nodules by ultrasonography

Objective To study the factors for misdiagnosis in ultrasonographic evaluation of thyroid nodules. Methods Fortyseven cases of misdiagnosed thyroid nodules by ultrasonography were retrospectively reviewed in light of their pathologic results. Results 672 examples with thyroid gland disease were diagnosed by ultrasound, among them, 25 cases were incorrectly diagnosed, with mlsdiagnosis rate at 3.85%, 22 cases of missed diagnosis were found, with the rate of missed diagnosis at 3.4%. The misdiagnosis was accounted for by several factors including multiform nodules, too small cancer lesion, lack of typical ultrasound features and clinical experience. Conclusion The high frequency color ultrasonography has high diagnostic value in thyroid nodules, but some coexisted thyroid diseases can be omitted and still has limitation on finding small thyroid cancer.