DWI结合常规MRI在侵袭性纤维瘤病诊断中的应用

目的：探讨DWI结合常规MRI对侵袭性纤维瘤病的诊断价值。方法：回顾性分析经病理证实的11例侵袭性纤维瘤病（共12个病灶）的MRI表现,其中6个病灶行DWI扫描。结果：12个病灶均以等T1、稍长T2信号为主,夹杂较丰富的低信号,均呈肌肉及其筋膜间隙塑型样表现,9个病灶向相邻肌肉内蔓延形成肌束样、羽毛状强化影。行DWI扫描的6个病灶呈高信号,ADC图上信号呈等或稍高于肌肉信号。结论：侵袭性纤维瘤病的MRI表现具有一定特征。DWI结合常规MRI不仅能够提高本病的定性诊断能力,而且能够更全面细致地勾勒病灶范围及边界。

Application of diffusion-weighted imaging in combination with routine MRI in the diagnosis of aggressive fribromatosis

Objective：To investigate the role of diffuse weighted imaging （DWI） in combination with routine magnetic resonance imaging （MRI） in the diagnosis of aggressive fibromatosis （AF）.Methods：MRI findings of 11 patients （12 foci） with pathology proved AF were analyzed retrospectively.6 foci had DWI.Results：All of the 12 foci of AF appeared mainly as iso-intensity on T1WI and slight hyper-intensity mixed with rich areas of hypo-intensity on T2WI,which presented as the appearance of ＂modeling of muscle and its fascial space＂,myofilament-like and feather-like enhancement extending into adjacent muscles could be assessed in 9 foci.Of the 6 foci had DWI,hyper-intensity similar to or slightly higher than the muscle on ADC maps could be revealed.Conclusion：Certain MRI characteristics of aggressive fribromatosis could be assessed.DWI in combination with routine MRI not only could improve the capability of characterization,but also could depict the precise extent as well as the boundary of the lesion.