Objective To analyze histopathological type and ultrasonographic findings of nodular fasciitis (NF), in order to observe the value of uhrasonography in diagnosis of NF. Methods Ultrasonographic and color Doppler appearances of 27 patients with NF proved histopatholgically were analyzed retrospectively, and their correlation with histopathological appearances were observed. Results Ultrasonographie appearance of NF were varied. However, in most of the cases, hypoechoic mass less than 3 cm were found in the subcutaneous and intermuscular regions. According to their location, the lesions were categorized into subcutaneous, fascial and intramuscular. Among them subcutaneous type was closely related with deep fascia. Fascial type had unique exhibition in ultrasonography, characterized by extension along superficial fascia and lobes of subdermal lipid like "star". On the basis of the predominant histopathologic composition of resection specimens, they were also classified as myxoid, cellular and fibrous subtypes. Myxoid type of lesions had echo free zone inside the mass and peripheral blood flow, whereas cellular type of lesion had intra-tumoral and significant peripheral blood flow.No blood flow signal was noted in fibrous type of lesions. Conclusion NF has different ultrasonographic features. Two-dimensional and color Doppler ultrasonography are important assisitants in diagnosis of NF.%目的 分析结节性筋膜炎的组织病理学分型及其相应二维及彩色多普勒超声声像图特征,探讨超声诊断结节性筋膜炎的价值.方法 分析27例经手术病理证实的结节性筋膜炎患者的二维和彩色多普勒超声声像图特征及与其组织病理学分型的相关性.结果 结节性筋膜炎超声声像图表现多样,共有特征为皮下或肌层内弱回声团块,病变多数小于3 cm.不同组织病理学分型的超声表现具有一定特征.按照病变部位可分为皮下型、筋膜型及肌内型,其中皮下型多与深筋膜关系密切;筋膜型具有特征性的沿浅筋膜和皮下脂肪小叶的纤维间隔伸展,呈"星状"突起的超声表现.根据病变结构不同可分为黏液型、细胞型和纤维型,黏液型团块内部可有小片状无回声区,边缘有血流;细胞型团块内部及边缘有血流,且边缘血流明显,而纤维型无明显血流.结论 不同分型结节性筋膜炎具有一定特征;二维及彩色多普勒超声可作为结节性筋膜炎诊断的重要辅助检查.
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