Ballerini G, Mantero M, Sbrocca M
J Clin Ultrasound. 1984 Jun;12(5):273-7. doi: 10.1002/jcu.1870120508.
The aim of this study was to define sonographic patterns of expanding parotid lesions. Over a 2-year period, 39 parotid gland masses were examined. Gray-scale sonography with a static scanner using high frequency transducers (5 and 7.5 MHz) provided refined visualization of the normal structure of the gland and the space-occupying mass. There are different sonographic patterns for different types of mass. Lesion malignancy should always be suspected when there is a clearly echogenic mass, especially one with an irregular distribution of the echoes, posterior attenuation, and rough margins (these sonographic features are of no value for lymphomas). All benign lesions have regular margins and are sonolucent at normal gain settings. It is possible to obtain a characteristic sonographic pattern for each specific benign lesion by varying the gain.
本研究的目的是确定腮腺病变扩大的超声特征。在两年时间里，对39例腮腺肿块进行了检查。使用高频探头（5和7.5兆赫）的静态扫描仪进行灰阶超声检查，能清晰显示腮腺的正常结构和占位性肿块。不同类型的肿块有不同的超声特征。当出现明显的高回声肿块，尤其是回声分布不规则、后方衰减且边缘粗糙时，应始终怀疑病变为恶性（这些超声特征对淋巴瘤无诊断价值）。所有良性病变边缘规则，在正常增益设置下为无回声。通过改变增益，可以获得每种特定良性病变的特征性超声图像。
