腕骨骨内腱鞘囊肿的影像学表现  

Radiologic Appearances of Intraosseous Ganglion of Carpal Bones

作　　者：张赟[1,2] 谢传淼[1,2] 沈静娴[1,2] 莫运仙[1,2] 吕衍春[1,2] 

机构地区：[1]华南肿瘤学国家重点实验室,广东省广州510060 [2]中山大学肿瘤防治中心医学影像与介入中心

出　　处：《中国医学计算机成像杂志》2010年第1期31-33,共3页Chinese Computed Medical Imaging

摘　　要：目的:评价腕骨骨内腱鞘囊肿的影像学特征。方法:分析8例经手术病理证实的发生于近排腕骨的骨内腱鞘囊肿的X线(7例)、CT(5例)和MRI(2例)表现,其中男性5例,女性3例,平均年龄28岁,发生于月骨6例,舟骨2例。结果:8例患者均表现为腕关节的慢性疼痛和不适。X线平片显示为月骨或舟骨内囊状溶骨性病变,边缘光滑,有硬化边包绕,病灶内无骨性分隔和钙化。CT图像上2例病灶可见骨皮质小缺损与关节腔相通。2例MRI显示T1WI为低信号,T2WI为高信号,信号均匀。结论:腕骨骨内腱鞘囊肿好发中青年,有腕关节慢性疼痛和不适病史,典型X线表现为发生于近排腕骨的边界清楚囊状病变,有硬化边。CT可清楚显示病灶是否与关节腔相通。病灶在MRIT1WI为低信号,T2WI为高信号。Purpose： To observe the imaging features of intraosseous ganglion of the carpal bones. Methods： The radiography（n = 7）, CT（n = 5） and MR（n = 2） in 8 cases of surgically confirmed intraosseous ganglion were retrospectively reviewed. Results： Typical intraosseons ganglion was sharp margined and cystic lesion with sclerotic margin. Six cases showed no communication with joint, 2 cases displayed communication with joint through little cortical defect. CT was able to detect the lesions better than radiograph. Intraosseous ganglion demonstrated hypo - intense on MR T1WI images, and hyper - intense on T2 WI images. Conclusion： Intraosseons ganglion of the carpal bone was typically seen as sharp margined cystic lesion in the proximal carpal row, which could be better demonstrated by CT and MR.

关 键 词：骨疾病 腕骨 放射摄像术 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]