摘要
Abstract
Objective To assess the value of ultrasound (US) in differentiating benign from malignant thyroid nodules with Hashimoto's thyroiditis (HT) background. Methods A total of 172 thyroid nodules(116 benign nodules,56 malignant nodules) with Hashimoto's thyroiditis background were included in this study. The sonographic characteristics of nodules were investigated,including type of thyroid essence echogenicity,number of nodule,size of nodule,morphology,border,echo type,homogeneity of internal echo,acoustic halo,calcification,posterior echo attenuation and blood supply. Results Among 172 nodules with Hashimoto's thyroiditis background,67.4% (1167172) were benign (65 pseudonodularity,47 nodular hyperplasm or follicular adenoma,3 fibrosis.l lymphoepithelial cyst),and 32.6% (56/172) were malignant (56 papillary carcinoma). Malignant nodules were more likely to be solitary(64.3% vs 40.5%),hypoechoic(92.9% vs 50.9%),irregular(60.7% vs. 26.7%),obscure boundary (73.2% vs 27.6%),and aniso-intemal echo(92.9% vs 38.8%).Calcification including microcalcification (58.9% vs 16.4% )and posterior echo attenuation (46.49fc vs 19.0%)were more common among malignant nodules. Benign nodules were more likely to be multiple (54.3% vs 17.9%),hyperechoic (29.3% us 0),having a halo (12.1% vs 0),and lacking calcifications (62.9% vs 19.6%). The background echogenicity of thyroid essence had some differences between malignant and benign nodules. The benign and malignant nodules were all of hypovascularity in color Doppler sonography. Conclusions Sonographic features of benign and malignant nodules with Hashimoto' s thyroiditis background are different in general,and gray scale ultrasound is good enough for the differentiation of benign from malignant nodules with Hashimoto's thyroiditis background.关键词
超声/桥本甲状腺炎/甲状腺癌/甲状腺结节Key words
Ultrasonography/Hashimoto's thyroiditis/Thyroid cancer/Thyroid nodule分类
医药卫生
