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CT and MRI Features and Diagnosis of Synovial Sarcoma
Author(s): 
Pages: 1871-1874
Year: Issue:  12
Journal: Journal of Clinical Radiology

Keyword:  Synovial sarcomaTomographyX-ray computedMagnetic resonance imagingDiagnosis;
Abstract: 目的 探讨软组织滑膜肉瘤的CT和MRI影像特征,提高对该病的诊断水平.方法 回顾性分析经病理证实的43例滑膜肉瘤患者的CT和MRI资料,根据肿瘤的大小、边界、密度、信号特点和强化方式,分析其影像征象.结果 43例患者中,肿瘤位于下肢关节附近、骨旁或肌肉间隙共23例,约占53.5%,上肢关节附近6例,椎体5例,颈部3例,鼻咽腔3例,纵隔2例,前列腺1例.肿瘤最小径1.7 cm,最大径12.8 cm,,平均约4.7 cm.CT平扫肿瘤多表现为边界较为清晰的圆形、类圆形、梭形或结节状软组织肿块,可有分叶,密度与肌肉组织相仿,可见坏死、囊变,7例肿瘤内见钙化.MRI平扫T1WI像上表现为等、稍高、稍低或混杂信号,T2WI像上,25例表现为稍高信号或混杂高信号,内含出血、坏死、囊变区.增强扫描表现为明显不均匀强化,其中2例可见异常粗大的血管影.结论 滑膜肉瘤CT和MRI特征多变,其影像学特点对其诊断有一定的价值,确诊仍需要结合病理检查.
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