外周神经脂肪纤维错构瘤的超声诊断价值探讨

Value of high frequency sonography in diagnosis of peripheral nerve lipofibroma hamartoma

目的探讨超声诊断外周神经脂肪纤维错构瘤的价值。方法对17例外周神经脂肪纤维错构瘤的患者进行高频超声检查，分析其声像图特征，并与临床外科手术进行对照。结果高频超声均可清晰显示外周神经的走行及内部结构，并精确定位外周神经脂肪纤维错构瘤累及的范围。其声像图表现为受累神经呈膨胀性生长，内部可见高回声脂肪组织和低回声神经纤维相间结构，呈“莲藕状”，彩色多普勒示其内无血流信号显示。结论高频超声是诊断外周神经脂肪纤维错构瘤首选的影像学检查方法。

Objective To study the value of high frequency sonography in diagnosis of peripheral nerve lipofibroma hamartoma. Methods The high frequency sonography＇images of seventeen patients with diagnosed peripheral nerve lipofibroma hamartoma were retrospective analyzed. The sonography features were compared with clinical surgery. Results The position and internal structure of nerve can be found by high frequency ultrasound, and which nerve fascicle, location and scope of lipofibroma hamartoma can be displayed clearly. The involved peripheral nerve was showed expansive growth. Because the hyperechoic fat tissue and hypoechoic nerve fibers alternated with one and another,the feature of high frequency sonography was lotus-like, there was no blood flow signal in nerve. Conclusions High frequency sonography is the preferred imaging method for diagnosis of lipofibroma hamartoma.