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目的:分析腱鞘巨细胞瘤的影像学表现以提高对该病的认识。方法:回顾性分析10例经手术病理证实的腱鞘巨细胞瘤的X线平片及MRI表现,其中10例行X线平片检查,8例行MRI平扫及增强扫描。结果:X线平片显示局部稍高密度软组织肿块影,邻近骨质未见明显异常或轻度侵蚀破坏。MRI表现为相应部位软组织肿块影,T1WI多呈较低信号,内可见条片状更低信号影,增强后强化明显;T2WI呈高低混杂信号影;病灶与邻近肌腱关系密切,其中一例包绕指屈肌腱蔓状生长;局部骨皮质可受侵。结论:腱鞘巨细胞瘤的影像学表现具有一定的特征性。
OBJECTIVE: To analyze the imaging findings of giant cell tumor of tendon sheath to improve the understanding of the disease. Methods: Ten cases of pathologically confirmed giant cell tumor of the tendon were retrospectively analyzed. X-ray and MRI were performed on 10 cases of X-ray and 8 cases of MRI. Results: X-ray showed a slightly higher density of soft tissue mass shadow, adjacent bone no obvious abnormal or mild erosion damage. MRI showed the corresponding parts of the soft tissue mass, T1WI mostly showed lower signal, visible within the strip lower signal shadow, enhanced enhanced obvious; T2WI was mixed signal of high and low; lesions and adjacent tendons are closely related, including a case of wrap around Flexor tendon growth; local cortical invasion. Conclusion: The imaging findings of tendon sheath giant cell tumor have certain characteristics.