高频超声显像对甲状腺癌的诊断价值

目的 探讨高频超声显像在甲状腺癌诊断中的应用。方法对66例已经手术病理证实为甲状腺癌的高频超声声像图特征与病理对照分析。结果66例甲状腺癌超声检出率93．9％，误诊6．1％。其中乳头状腺癌49例，滤泡状腺癌11例，髓样癌4例，未分化癌2例。甲状腺癌有特征性声像图表现：（1）肿块形态不规则；（2）境界不清；（3）无晕环征；（4）后方衰减；（5）内部回声不均匀，出现弥漫性砂粒样钙化。结论高频超声显像可提高甲状腺癌的检出率。当甲状腺内出现不均质低回声肿块且伴有砂粒样钙化，同时伴有同侧颈部淋巴结肿大时，要警惕甲状腺癌的可能。

The value of high-frequency ultrasonic visualization in the diagnosis of thyroid carcinoma

Objective To evaluate the value of high-frequency ultrasonic visualization in the diagnosis of thyroid carcinoma.Methods High-frequency ultrasonic visualization features of 66 cases pathologically confirmed thyroid carcinoma were cross-check analyzed with pathology.Results The ultrasound detection rate was 93.9% and the misdiagnosis rate was 6.1%.Of the total 66 cases,49 were papillary thyroid carcinoma,11 were follicular thyroid carcinoma,4 were medullary carcinoma and 2 were undifferentiated carcinoma.The specific ultrasonographic features were as follows:(1)irregular appearance;(2)indefinite border;(3)ring-sign negative;(4)pone attenuated;(5)uneven internal echo and grit-like calcification.Conclusion High frequency ultrasonic visualization is helpful in diagnosing thyroid carcinoma.When high frequency ultrasonic visualization shows as low level uneven echo and grit-like calcification with lymphadenectasis of homopleural neck,thyroid carcinoma should be on guard against.