【摘要】 目的 探讨踝周邻关节骨囊肿影像表现特征以及其诊断价值。方法 对本院1982—2012年经病理证实的40例踝周邻关节囊肿影像表现进行回顾性分析。33例行X线平片检查,26例行CT检查,13例行MR检查。结果 单纯距骨病变23例,单纯胫骨病变15例（后踝8例,内踝6例,胫骨远端前部1例）,外踝骨囊肿1例,多发病变1例（距骨和后踝）。29例为类圆形单房状溶骨病变,11例呈多房状,内有分隔。均有轻度的硬化边,15例关节面有中断,与关节腔相通。（1）33例34个病灶X线表现为踝周骨内邻近关节面的类圆形囊样透亮区,边缘清晰、硬化,12个病灶相邻关节面可见裂隙;（2）26例单发病灶CT表现为呈圆形透亮影,边缘骨质硬化,14个病灶相邻关节面可见裂隙;（3）13例14个病灶MRI表现为T₁WI为低到中等信号,T₂ WI为高信号,4个病变邻近关节面骨质断裂,6例软组织肿胀。结论 踝周邻关节骨囊肿的特殊发病部位结合典型影像学表现,对本病能够作出正确的影像诊断。更多还原

【Abstract】 Objective To investigate the imaging feat ures of intra-osseous ganglia surrounding the ankle joints and their diagnostic value.Methods Imaging features of 40 cases of intra-osseous ganglia proved by the pathology from 1982 to 2012 were analyzed retrospectively.33 cases underwent radiography,26 cases underwent computed tomography（CT） and 13 cases underwent magnetic resonance imaging（MRI）.Results Intra-osseous ganglia were detected at talus in 23 cases,distal tibia in 15 cases（8 cases in posterior melleolus,6 cases in medial melloulus and 1 case in anterior part of distal tibia）,and lateral malleolus in 1 case.Multiple intra-osseous ganglia was detected in 1 case,which located in both talus and posterior malleolus.29 cases were oval,monolocular osteolytic lesions.11 cases were multilocular lesions with separation.All cases were observed with slightly sclerous edge.Articular surface disruptions were observed in 15 cases,and lesions were connected with the joint space.（1）Oval cystic translucent areas with sharp and sclerous edge adjacent to the ankle joint were observed in 34 lesions of 33 cases on radiograph.Cracks were noted on the articular surface of 12 lesions.（2） Round translucent areas with sharp and sclerous edge were observed in 26 isolated lesions on CT images.Cracks were noted on the articular surface of 14 lesions.（3）14 lesions of 13 cases showed low to moderate signal on T₁WI and high signal on T₂ WI.Cracks were observed in 4 lesions adjacent to the ankle joint,and soft tissue swelling was noted in 6 lesions.Conclusion Intra-osseous ganglia can be diagnosed accurately based on the typical imaging features and special locations.更多还原