目的 探讨结节性筋膜炎的超声声像图特点及高频超声的诊断价值.资料与方法 回顾性分析14例经病理证实的结节性筋膜炎患者的临床及声像图资料,记录病变大小、位置、毗邻关系、灰阶超声表现及内部血流情况.结果 14例患者病灶最大径线0.4～4.4cm,平均(1.9±1.0) cm,发生于上肢者最常见(6例),均位于屈侧.根据病变深度不同,9例位于皮下深筋膜,2例位于皮下浅筋膜,位于肌间、肌内和皮肤真皮层内各1例.病变形态以梭形和椭圆形为主(10例).除1例表现为无回声外,其余均表现为低回声,所有病灶后方出现回声增强.11例病灶血流信号不丰富,3例血流信号丰富的病灶体积较大,平均直径为(2.8±1.1) cm,内部可探及高阻动脉血流频谱.结论 结节性筋膜炎的声像图表现具有特征性,超声检查结合病变发生部位及临床表现有助于明确诊断.%Purpose To explore the sonographic features of nodular fasciitis and the diagnostic value of high frequency ultrasound. Materials and Methods Fourteen confirmed nodular fasciitis cases were retrospectively studied. The size, distribution, location, gray scale sonographic appearance and internal color flow information of all lesions were analyzed. Results The maximum diameter ranged from 0.4 to 4.4 cm [average (1.9+1.0) cm]. Most lesions were located in upper extremities (6/14) and the volar aspect There were 9 (9/14) lesions located in the deep fascia, 2 in superficial fascia, 1 intramuscular, 1 intermuscular and 1 in the dermis. Most lesions were fusiform or oral shape (10/14). 13 lesions showed hypoechogenicity with posterior enhancement while 1 lesion was echo free. Most lesions (11/14) were hypovascular. 3 large lesions [average diameter (2.8± 1.1) cm] showed high RI arterial flow. Conclusion Nodular fasciitis has specific sonographic features. Sonographic findings combined with clinical features can help diagnose nodular fasciitis.
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