Ultrasonographic Differentiation Between Nodular Hyperplasia and Neoplastic Follicular-Patterned Lesions of the Thyroid Gland

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• 作者：Yong Sub Song^&lowast ; ; Ji-hoon Kim^&lowast ; ; ^{jihnkim@gmail.com" class="auth_mail" title="E-mail the corresponding author} ; Dong Gyu Na^&dagger ; ; Hye Sook Min^&Dagger ; ; ^§ ; ; Jae-Kyung Won^&Dagger ; ; Tae Jin Yun^&lowast ; ; Seung Hong Choi^&lowast ; ; Chul-Ho Sohn^&lowast ;
• 关键词：Ultrasonography ; Thyroid ; Nodular Hyperplasia ; Follicular-patterned lesion ; Follicular adenoma ; Follicular carcinoma ; Follicular variant papillary carcinoma
• 刊名：Ultrasound in Medicine & Biology
• 出版年：2016
• 出版时间：August 2016
• 年：2016
• 卷：42
• 期：8
• 页码：1816-1824
• 全文大小：799 K

文摘

We evaluate the gray-scale ultrasonographic characteristics that differentiate between nodular hyperplasia (NH) and neoplastic follicular-patterned lesions (NFPLs) of the thyroid gland. Ultrasonographic features of 750 patients with 832 thyroid nodules (NH, n = 361; or NFPLs, follicular adenoma, n = 123; follicular carcinoma, n = 159; and follicular variant papillary carcinoma, n = 189) were analyzed. Except for echogenicity, over two-thirds of the cases of NH and NFPLs share the ultrasonographic characteristics of solid internal content, a well-defined smooth margin and round-to-ovoid shape. Independent predictors for NH were non-solid internal content (sensitivity 27.1%, specificity 90.2%), isoechogenicity (sensitivity 69.5%, specificity 63.5%) and an ill-defined margin (sensitivity 18.8%, specificity 94.5%). Independent predictors for NFPLs were hypoechogenicity (sensitivity 60.5%, specificity 70.4%), marked hypoechogenicity (sensitivity 2.8%, specificity 99.4%) and taller-than-wide shape (sensitivity 6.6%, specificity 98.1%). Although NH and NFPLs commonly share ultrasonographic characteristics, non-solid internal content and ill-defined margin are specific to NH and marked hypoechogenicity and taller-than-wide shape are specific to NFPLs.