Analysis of the MRI features of synovial sarcoma

WU Bing; ZHU Hui; HU Peian; CHEN Lei; ZHOU Zhengrong

doi:10.19732/j.cnki.2096-6210.2021.04.007

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Analysis of the MRI features of synovial sarcoma

更新时间：2025-12-15

- Analysis of the MRI features of synovial sarcoma
- Vol. 30, Issue 4, Pages: 269-274(2021)
- 作者机构：
  
  1. 山东省枣庄市妇幼保健院医学影像科,山东,枣庄,277100
  2. 国家儿童医学中心，复旦大学附属儿科医院放射科,上海,201102
  3. 复旦大学附属肿瘤医院放射诊断科，复旦大学上海医学院肿瘤学系,上海,200032
  4. 复旦大学附属肿瘤医院闵行分院放射科,上海,200240
- 作者简介：
- 基金信息：
- DOI：10.19732/j.cnki.2096-6210.2021.04.007
  CLC：
- Published Online：28 August 2021，
  
  Published：28 August 2021
- 稿件说明：
移动端阅览
武兵,朱慧,胡培安,等. 滑膜肉瘤的MRI表现分析[J]. 肿瘤影像学, 2021, 30(4): 269-274 https://doi.

org/10.19732/j.cnki.2096-6210.2021.04.007
武兵,朱慧,胡培安,等. 滑膜肉瘤的MRI表现分析[J]. 肿瘤影像学, 2021, 30(4): 269-274 https://doi. DOI： 10.19732/j.cnki.2096-6210.2021.04.007.

org/10.19732/j.cnki.2096-6210.2021.04.007 DOI：

摘要

目的：

分析滑膜肉瘤（synovial sarcoma，SS）的磁共振成像（magnetic resonance imaging，MRI）表现，以增加对该肿瘤的认识及提高诊断准确度。

方法：

回顾并分析26例SS患者的MRI表现，比较不同病理学类型及不同部位的SSMRI表现差异。

结果：

26例患者，20例发生关节周围，6例位于非关节周围。T1加权成像（T1-weighted imaging，T1WI）呈不均匀等或略高信号，T2加权成像（T2-weighted imaging，T2WI）呈不均匀高信号，增强后呈明显不均匀强化。22例伴分隔；19例伴坏死囊变；5例伴液-液平；19例伴结节堆积征；19例伴三联征。梭形细胞与双相型、关节与非关节周围SS的MRI征象无明显差异。结节堆积征、T2WI三联征的发生与肿瘤的大小存在中度正相关（

=0.73，

=0.002 9）。

结论：

SS的MRI表现有典型特征，多数可以做出定性诊断；MRI征象与肿瘤的大小之间存在中度正相关。不同病理学类型及不同部位的SS MRI表现无明显差异。

Abstract

Objective:

To analyze the magnetic resonance imaging (MRI) findings of synovial sarcoma (SS) for deepening the knowledge of SS and improving the diagnostic accuracy.

Methods:

The MRI features of 26 cases with histologically proven SS were reviewed. The differences of MRI features between different subtypes of SS

and between different locations were explored.

Results:

A total of 26 cases

20 were periarticular

and the other 6 cases were non-periarticular. The masses showed mainly iso- or slightly hyper- signal intensity (SI) on T1-weighted imaging

(T1WI)

heterogeneous hyper- SI on T2-weighted imaging (T2WI)

and heterogeneous notable enhancement. Twenty-two cases were found with fibrous septa

19 with necrosis/cystic degeneration

5 with fluid-fluid level

19 with the sign of nodular accumulation

and 19 with triple sign. There were no significant differences in the MRI features between spindle cell and biphasic type SS

and between periarticular SS and non-periarticular SS. Moreover

there were moderate positive correlations between the presence of the nodular accumulation sign

triple sign

and the tumors size (

=0.73

=0.002 9).

Conclusion:

SS usually shows characteristic MRI features

so most are allowed for a definite diagnosis. There are moderate positive correlations between the presence of MRI features and the tumors size. No remarkable differences in MRI features of SS can be seen either in different pathological subtypes or in different locations.

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