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目的通过分析无痛性亚急性甲状腺炎(SAT)的超声误诊原因,提高对本病的认识。方法回顾性分析术前超声误诊的20例没有临床症状的SAT临床资料与声像图特征。结果所有病例均经病理确诊。误诊为甲状腺癌(TC)15个病灶,结节性甲状腺肿(NG)5个病灶,甲亢及桥本氏甲状腺炎(HT)各1个病灶,超声未能明确性质2个病灶。结论无痛性SAT易误诊,当遇到局灶性边界欠清低回声甲状腺病变时,应考虑到SAT的可能性,及时结合实验室或其他影像学检查鉴别诊断,减少不必要的误诊及手术。
OBJECTIVE To improve the understanding of this disease by analyzing the causes of misdiagnosis of ultrasound in painless subacute thyroiditis (SAT). Methods The clinical data and sonographic features of 20 cases with no clinical symptoms were retrospectively analyzed. Results All cases were confirmed by pathology. Misdiagnosed as 15 lesions of thyroid cancer (TC), 5 lesions of nodular goiter (NG), 1 lesions of hyperthyroidism and Hashimoto’s thyroiditis (HT), 2 lesions were not identified by ultrasound. Conclusions Painless SAT is often misdiagnosed. When confounding with low border echo and thyroid lesions, the possibility of SAT should be taken into account. Differential diagnosis should be timely combined with laboratory or other imaging examination to reduce unnecessary misdiagnosis and surgery .