摘要
目的:分析腱鞘巨细胞瘤的MRI表现,探讨其MRI的诊断价值。方法:回顾性分析经手术病理证实的腱鞘巨细胞瘤20例的MRI检查资料。男8例,女12例;年龄15～61岁,平均35.5岁。所有病例行MRI检查。结果:病变位于膝关节16例,足趾关节和踝关节各2例。其中局限性19例,弥漫性1例,MRI均表现为下肢骨关节旁软组织肿块,肿瘤与骨骼肌相比,T1WI上15例接近于骨骼肌信号,5例稍低于骨骼肌信号;在T2WI上4例介于骨骼肌与皮下脂肪信号之间,13例接近于骨骼肌信号,3例稍低于骨骼肌信号。16例行T1WI增强扫描,5例呈均匀强化,11例呈不均匀强化。4例伴邻近骨质破坏。结论:MRI能明确显示下肢关节旁腱鞘巨细胞瘤病变的部位、形态及内部信号特征,对临床诊断、指导临床治疗和随访具有重要价值。
Objective：To analyze the manifestation and investigate the value of MRI in the diagnosis of giant cell tumor of tendon sheath （GCTTS）. Methods：Twenty patients with GCTTS proved by operation and pathology were retrospectively analyzed. There were 8 males and 12 females. The average age was 35.5 years ,range from 15 to 61 years. All the patients underwent MRI examination. Results：Among the 20 cases,16 patients had the tumor in knee joint,2 patients had the tumor in interphalangeal articulation of foot and ankle joint respectively. Nineteen patients had limited tumor and 1 patient had diffuse tumor. The soft tissue mass localized beside lower extremity osteoarticulation was displayed on MRI images. On T1WI ,the signal intensities of GCTTS almost equaled to those of skeletal muscle in 15 cases and were slightly lower than those of skeletal muscle in 5 cases. On T2WI,the signal intensities tended to range between those of skeletal muscle and fat in 4 cases ,almost equaled to those of skeletal muscle in 13 cases,and were slightly lower than those of skeletal muscle in 3 cases. In the 16 patients with gadolinium enhanced images on T1WI,5 patients showed homogeneous enhancement and 11 patients showed inhomogeneous enhancement. Four patients had adjacent bone destruction. Conclusion：The location,shape and inner signal characteristic of GCTTS localized beside lower extremity osteoarticulation could be demonstrated clearly by MRI examination , which is valuable for clinical diagnosis,guiding treatment and follow-up visit.
出处
《中国骨伤》
CAS
2012年第11期953-956,共4页
China Journal of Orthopaedics and Traumatology
关键词
巨细胞瘤
腱鞘
磁共振成像
下肢
Giant cell tumors
Tendon sheath
Magnetic resonance imagine
Lower extremity
