甲状腺髓样癌超声诊断及误诊原因分析

目的 分析甲状腺髓样癌的超声表现,探讨超声误诊原因.方法 回顾性分析经手术病理证实的17例甲状腺髓样癌的超声表现,归纳其声像图特征,总结导致误诊的原因.结果 17例患者中10例合并其他结节,19个病灶中14个边界不清,无包膜的15个,8个〉1 cm,呈低回声的为13个,内回声不均匀的13个,出现钙化灶的14个,检测到血流信号的13个,发生颈部淋巴结转移的11例.超声诊断恶性肿瘤13个,准确率为684%;超声诊断良性病变6例,误诊率为316%.结论 甲状腺髓样癌具有一定的声像图特点,对其特征性的分析有助于其的正确诊断.

The diagnosis and disdiagnosis with CDFI of medullary thyroid carcinoma

Objective The purpose of this study is to investigate the medullary thyroid carcinoma on uhrasonography and the causes of misdignosis. Methods We retrospectively reviewed ultrasonographic medullary thyroid carcinoma in 17 ca- ses which were confirmed by operation and pathology, and analyzed the causes of misdiagnosis. Results All cases of medul- lary thyroid carcinoma showed hypoechogenic solid tumors（ 13 case） with heterogeneous（ 13 case）, with other nodules （10 case） ,and unclear margin（ 14 case） ,without coated（ 15 case） ,with blood signal （13 case）and have lymph node metastasis （ 11 case） on ultrasonography. Ultrasonography made correct diagnosis in 13 cases （ 68.4 % ） and misdiagnosis in 6 （ 31.6% ） cases. Conclusion This study shows that the Medullary thyroid carcinoma sonagraphic features to help the correct diagnosis.