长骨纤维结构不良的MRI诊断  

MRI Diagnosis of Fibrous Dysplasia of Long Bone

作　　者：方挺松[1] 彭加友[1] 邢飞飞[1] 

机构地区：[1]广州中医药大学附属佛山中医院放射科,广东佛山528000

出　　处：《实用放射学杂志》2010年第6期868-870,共3页Journal of Practical Radiology

摘　　要：目的 探讨长骨纤维结构不良的MRI表现特点.方法 回顾分析16例经手术病理证实的长骨纤维结构不良患者的MRI影像资料.结果 与周围正常肌肉信号相比,病变在T1WI表现为均匀等信号4例,等信号为主的等、低混杂信号8例,均匀低信号3例 T2WI显示较均匀高信号3例,不均匀中等信号5例,中等信号为主的等、高混杂信号7例 1例在T1WI及T2WI均显示为均匀低信号.4例可见病灶内线样分隔,分隔在T1WI、T2WI均表现为低信号.注射Gd-DTPA增强扫描,病灶可表现为边缘强化、斑片状强化或不均匀强化.结论 纤维结构不良的MRI表现与病灶内不同病理组织成分相关,且MRI能够提供更全面的影像学信息.Objective To discuss the MRI features of fibrous dysplasia of long bone. Methods MRI data in 16 patients with fibrous dysplasia proved by pathology were reviewed. Results As comparing with soft tissue,the lesions were homogeneous iso-intense in 4,heterogeneous intense in 8 and homogeneous hypointense in 3 on T1WI, and homogeneous hyper-intense in 3 heterogeneous iso-intense in 5 and heterogeneous iso-or hyper-intense in 7. While, one lesion appeared as homogeneous hypointensity on both T1WI or T2WI. The septa inside the lesions appeared as line-like, and were hypointense on both T1WI or T2 WI in 4. After the injection of Gd-DTPA, the enhanced pattern of the lesions included patchy rim and an-homogeneous. Conclusion MRI features of fibrous dysplaia of hone reflect the variable pathologic elements of the lesions and MRI can provide much more comprehensive imaging informations.

关 键 词：骨骼 骨纤维结构不良 磁共振成像 

分 类 号：R681[医药卫生—骨科学] R445.2[医药卫生—外科学]