骨内腱鞘囊肿的MRI诊断

目的：探讨骨内腱鞘囊肿的MRI表现及其诊断价值。材料与方法回顾性分析经手术证实的10例骨内腱鞘囊肿的临床及影像学资料。其中膝关节3例，髋关节2例，踝关节5例。结果 MRI表现病灶呈圆形或者椭圆形的长T1、T2信号，病灶周围可见低信号硬化边，1例病灶内见低信号间隔，1例病灶与关节腔相通。结论骨内腱鞘囊肿在MRI具有特征性的影像学表现，MRI可以显示病灶的信号特征、邻近软骨有无受累及与关节关系，有重要的临床价值。

MRI diagnosis of intraosseous ganglion

Objective: To explore the MRI features and diagnostic value of the intraosseous ganglion. Materials and Methods:Clinical data and imaging features of 10 cases surgically conifrmed of intraosseous ganglion were respectively analyzed. Among these cases, 3 knees, 2 hips and 5 ankles were included. Results: MRI manifestations of lesions showed long T1, T2 signal, round or oval shape with low signal sclerotic rim, 1 case was found low signal interval, 1 case communicated to the joint cavity. Conclusions:Intraosseous ganglion showed characteristic image ifndings in MRI, MRI can display the characteristic signal and the adjacent involved cartilage lesions and joint relations, it has important clinical value.