结节性筋膜炎的CT和MRI表现  

CT and MRI Manifestations of nodular fasciitis

作　　者：刘永辉[1] 张水兴[2] 罗剑云[1] 陈锦灿[1] 邹光成[1] 

机构地区：[1]肇庆市第一人民医院放射科,广东526021 [2]广东省人民医院放射科,广州510080

出　　处：《放射学实践》2014年第4期433-436,共4页Radiologic Practice

摘　　要：目的:探讨结节性筋膜炎的CT和MRI表现。方法:回顾性分析10例经病理证实的结节性筋膜炎的CT和MRI表现。结果:10例中4例位于上肢,4例位于下肢,2例位于腹壁。病灶均表现为单发实性软组织肿块(肌内型6例,肌间型2例,皮下型2例),CT平扫示肿块密度稍低于肌肉密度,增强扫描有明显强化。MRI检查:病灶于T1WI呈等或稍低信号,T2WI呈不均匀高信号,其中1例病灶边缘可见囊变区,3例病灶中央可见低信号,增强扫描肿块呈均匀或不均匀中度-重度强化,边界清。结论:结节性筋膜炎的CT和MRI表现有一定特征性,两种方法均有助于本病的诊断及鉴别诊断。Objective：To investigate the imaging features of nodular fasciitis so as to improve the quality of diagnosis. Methods：CT and MRI imaging features of 10 cases with nodular fasciitis confirmed by pathology were analyzed retrospec tively. Results： Of the 10 cases,all had a single lesion with a soft tissue mass, including intramuscular type 6 cases, muscle clearance type 2 cases,and subcutaneous type 2 cases. As to their locations, 4 cases of nodular fasciitis were in the upper limbs,4 cases were in the lower limbs,and 2 cases were in the abdominal wall. The plain CT showed that the density of the lesions was a little bit lower than that of the muscle and significant enhancement appeared after contrast injection. MRI showed a slight hypo-to isointense signal intensity on T1 WI and hyperintense on T2 WI. In one of the cases cystic change could be seen at the edge of the lesion, and in 3 cases low signal could be seen in the center. The lesions showed homogeneous or heterogeneous moderate to intensive enhancement after contrast injection and had clear boundary. Conclusion： There are some characteristic imaging features in nodular fasciitis, all of these imaging findings are helpful in clinical diagno- sis before surgery.

关 键 词：结节性筋膜炎 体层摄影术 X线计算机 磁共振成像 

分 类 号：R816.8[医药卫生—放射医学] R445.2[医药卫生—临床医学] R686.3