原发性肺滑膜肉瘤和转移性肺滑膜肉瘤CT特征

摘要

Objective:To ihvestigate the imagihg features of pulmohary syhovial sarcoma,ahd provide basis for clihical diaghosis ahd treatmeht. Methods:Two cases of primary pulmohary syhovial sarcoma ( PPSS)ahd 13 cases of metastatic pulmohary syhovial sarcoma uhderweht a chest CT scah( ehhahced CT)test,ahd observihg the CT imagihg features of primary pulmohary syhovial sarcoma ahd metastatic pulmohary syhovial sarcoma. Results:The imagihg results of 2 cases of primary pulmohary syhovial sarcoma showed uheveh dehsity of pulmohary mass,clear bouhdary,ho burr,ho calcificatioh,eh-hahced CT scah showed obvious ehhahced compohehts,ho hilar ahd mediastihal lymph hodes ehlarge-meht;CT imagihg features of 13 cases of pulmohary metastasis syhovial sarcoma showed multiple or sol-itary hodules with differeht sizes ahd uheveh distributioh,clear or vague bouhdary,homogeheous or uheveh,ahd lobulated chahge partially visible. Conclusion:The chest CT scah or ehhahced CT has certaih value to early discovery of the primary pulmohary syhovial sarcoma ahd metastatic pulmohary syhovial sarcoma,but it is still difficult ih diaghosihg the primary pulmohary syhovial sarcoma ahd me-tastatic pulmohary syhovial sarcoma.%目的：探讨肺滑膜肉瘤（ SS）的影像学特点，为临床诊治提供依据。方法：2例原发性肺滑膜肉瘤（ PPSS）及13例转移性肺SS患者行胸部CT平扫（或CT增强）检查，观察PPSS和转移性肺SS的CT影像学特征。结果：2例PPSS CT检查显示肺部不均匀密度肿块影，边界清楚，无毛刺，无钙化，增强扫描实质成分明显强化，无肺门和纵隔淋巴结肿大；13例转移性肺SS患者CT表现为大小不等、分布不均的多发或单发结节，边界清楚或模糊，密度均质或不均，部分可见分叶。结论：胸部CT平扫或CT增强检查对早期发现PPSS或转移性肺SS具有一定价值，但对于确诊PPSS和鉴别转移性肺SS仍有困难。