Abstract：
This study aimed to describe the characteristics of superficial desmoid fibromatosis (DF) using two-dimensional and contrast-enhanced ultrasonography, intending to improve diagnostic accuracy. We retrospectively analyzed 19 cases of superficial DF confirmed by surgery or core-needle biopsy in our hospital from January 2018 to August 2020. All patients underwent two-dimensional and contrast-enhanced ultrasound (CEUS) examination. Nineteen patients included 15 women and 4 men, with an average age of 33.37±12.13 years old. The mean size of lesions was 4.78±1.99 cm. On ultrasound, all lesions presented as solitary heterogeneous hypoechoic masses; 13 presented with ill-defined margins. Ten lesions (52.63%) presented with fusiform shapes, and 11 lesions (57.89%) presented with the \"fascial tail\" sign. CEUS suggested the tumors were hyperenhanced, with an enhanced pattern of rapid wash-in and slow wash-out. Four lesions (21.05%) showed an enlarged scope in the CEUS image compared with the grayscale ultrasound image. In conclusion, an ill-defined heterogeneous hyperechoic appearance with fusiform-shaped and \"fascial tail\" signs on US and heterogeneous hyperenhancement with an enlarged scope on CEUS are valuable clues in the diagnosis and treatment of superficial DF.
摘要：
本研究旨在描述浅表纤维瘤病（DF）的二维超声造影特征。旨在提高诊断准确性。回顾性分析我院2018年1月至2020年8月经手术或芯针活检证实的19例浅表DF。所有患者均行二维及超声造影(CEUS)检查。19名患者包括15名女性和4名男性，平均年龄33.37±12.13岁。病灶平均大小为4.78±1.99cm。在超声波上，所有病变均表现为孤立的异质性低回声肿块；13例表现为边缘不清。10个病灶（52.63%）呈梭形，11例(57.89%)有“筋膜尾征”。CEUS提示肿瘤高度增高，具有增强的快速冲洗和缓慢冲洗的模式。与灰阶超声图像相比，CEUS图像中有4个病变（21.05％）显示范围扩大。总之,US上不明确的异质性高回声外观，具有梭形和“筋膜尾”征象以及CEUS上范围扩大的异质性高回声是诊断和治疗浅表DF的有价值的线索。
