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目的探讨腱鞘巨细胞瘤的影像学诊断价值。方法回顾性分析12例腱鞘巨细胞瘤患者资料,男性7例,女性5例;年龄21～70岁,中位年龄43岁。其中9例行X射线检查,5例行CT检查,4例行MR检查。结果病变位于手部4例,足部4例,踝关节2例,膝关节1例,肘关节1例。X射线及CT表现为骨旁稍高密度软组织肿块,邻近骨质见侵蚀或小囊样破坏,无明显骨膜反应。MRI:病灶在TlWI上接近于骨骼肌信号,T2WI呈等高信号,内见斑片状低信号区,均无明显关节积液。结论腱鞘巨细胞瘤的影像表现具有一定的特征,可以作出较明确的诊断。
Objective To investigate the imaging diagnosis of tendon sheath giant cell tumor. Methods Retrospective analysis of 12 cases of giant cell tumor of the tendon sheath data, 7 males and 5 females; aged 21 to 70 years, with a median age of 43 years. Among them, 9 patients underwent X-ray examination, 5 patients underwent CT examination and 4 patients underwent MR examination. Results The lesions were located in 4 cases of hand, 4 cases of foot, 2 cases of ankle, 1 case of knee and 1 case of elbow. X-ray and CT showed a slightly higher density of the soft tissue mass adjacent to the bone, adjacent to erosion or cystic see destruction, no significant periosteal reaction. MRI: TlWI lesion near the skeletal muscle signal, T2WI showed a high signal, see the patchy low signal area, no significant joint effusion. Conclusions The appearance of giant cell tumor of tendon sheath has certain characteristics and can make a definite diagnosis.