CT and MRI features of synovial sarcoma
10.3969/j.issn.1002G1671.2019.06.021
- VernacularTitle:滑膜肉瘤CT、MRI表现与鉴别诊断
- Author:
Kaiyuan JIN
1
;
Bangguo LI
;
Xiaoxi CHEN
;
Zhen ZENG
Author Information
1. 遵义医科大学附属医院影像科
- Keywords:
synovial sarcoma;
computed tomography;
magnetic resonance imaging
- From:
Journal of Practical Radiology
2019;35(6):940-942,947
- CountryChina
- Language:Chinese
-
Abstract:
Objective To analyze and evaluate the CT and MRI features of synovial sarcoma (SS).Methods Clinical and imaging data of 25 cases with SS confirmed by pathology were retrospectively analyzed.1 5 cases with CT scan,including 1 1 contrastGenhanced CT scan,and 1 2 cases with MRI scan,including 8 contrastGenhanced MRI scan.Results Among 25 cases,1 8 were located in the lower extremities,2 in the upper extremities and in the chest wall respectively,1 case in the lung parenchyma,mediastinum and spine respectively.1 8 cases were deep seated,while 1 9 cases were lobulated.On CT image,most of the lesions were isodense or hypodense to muscle,while 3 cases presented peripheral calcification,and 9 cases showed progressive enhancement.On MRI,10 cases were isointense or slight hypointense on T1 WI,while 9 cases presented hyperintense or slight hyperintense on T2 WI.9 cases showed cystic change (7 of them located in the periphery),and 8 cases showed short T1 signal.3 cases demonstrated "fluidGfluid levels",and 9 cases exhibited hypointense septa.7 cases revealed "triple sign"on T2 WI and 7 cases showed obviously heterogenous enhancement.Conclusion Synovial sarcomas are mostly located in the lower extremities,with clear margins,peripheral cystic changes,intramural hemorrhage,"triple sign"on T2 WI and progressive enhancement.
