膝关节腱鞘巨细胞瘤MRI影像学特征及其与病理特点的相关性研究

MRI Features of Giant Cell Tumor of Tendon Sheaths of Knee Joint and The Correlation with Pathological Features

目的研究膝关节腱鞘巨细胞瘤MRI影像学特征及其与病理特点的相关性。方法选择我院经手术确诊为膝关节腱鞘巨细胞瘤患者19例,均进行MRI检查,分析其影像学特征,并探讨其与病理特点的相关性。结果19例患者均为单侧膝关节腱鞘巨细胞瘤,其中15例为局限性膝关节腱鞘巨细胞瘤,4例为弥漫性。局限性膝关节腱鞘巨细胞瘤形态、韧带受侵、T1WI信号、T2WI信号、增强扫描强化及关节腔积液与弥漫性膝关节腱鞘巨细胞瘤无显著差异(P>0.05),边界清晰比例、关节滑膜未增厚比例均显著高于弥漫性膝关节腱鞘巨细胞瘤(P<0.05)。结论MRI检查中,膝关节腱鞘巨细胞瘤形态多呈不规则结节状,T1WI呈等或等低信号,MRI可作为临床诊断膝关节腱鞘巨细胞瘤的重要影像学检查方法。

Objective To study the MRI imaging features of giant cell tumor of tendon sheaths of knee joint and their correlation with pathological features. Methods A total of 19 patients with giant cell tumor of tendon sheath of knee joint diagnosed by operation in our hospital were selected for MRI examination, and their imaging characteristics were analyzed, and their correlation with pathological characteristics was discussed. Results All cases were unilateral giant cell tumor of tendon sheaths of knee joint, of which 15 cases were localized and 4 cases were diffuse giant cell tumor of tendon sheaths. There was no significant difference in the shape, ligament invasion, T1WI signal, T2WI signal, enhancement and joint cavity fluid between localized group and diffuse group(P>0.05), and the proportion of clear boundary and no thickening of synovium in localized group was significantly higher than that in diffuse group(P<0.05). Conclusion In MRI, the shape of giant cell tumor of tendon sheath of knee joint is irregular nodule, and T1WI is equal or equal low signal. MRI can be used as an important imaging method for clinical diagnosis of giant cell tumor of tendon sheath of knee joint.