胸部孤立性纤维瘤影像学表现及其病理基础  

Imaging performances and pathology of thoracic solitary fibrous tumor

作　　者：闫卫强[1] 白建军[1] 井勇[1] 雷学斌[1] 荣伟程[1] 田强[1] 李燕燕[1] 崔光彬[1] 

机构地区：[1]第四军医大学唐都医院放射科,陕西西安710038

出　　处：《实用放射学杂志》2012年第4期527-529,共3页Journal of Practical Radiology

摘　　要：目的 探讨胸部孤立性纤维瘤CT、MRI表现特征及其诊断价值.方法 通过回顾性分析手术病理证实的5例胸部孤立性纤维瘤的CT、MRI表现并复习文献,总结其MRI及CT影像特征的病理基础.结果 本组5例CT均表现为胸部单发实性肿块,边界较清晰,无毛刺,3例无分叶,2例有浅分叶;3例位于胸膜腔,2例位于肺内;肿瘤直径4.0～9.1 cm;5例均密度均匀,无钙化、囊变及液化坏死;5例均无胸膜腔积液,3例无胸膜粘连,2例有胸膜及膈肌粘连;3例中度均匀强化,2例轻度强化.MR表现为等T1、稍长T2及STIR稍高信号,其内信号欠均匀,边界较清楚.结论 CT、MRI可清晰显示病变大小、形态及与周围组织关系,MRI对病变组织特性显示较CT有优势,具有一定特征性,确诊仍需病理学检查.Objective To investigate CT and MRI characteristics and their diagnostic values in the thoracic solitary fibrous tumor （SFT）. Methods MRI and CT manifestations of 5 cases with SFT verified hy operation and pathology were retrospectively analyzed, the related literature were reviewed, and the pathological fundament of the MRI and CT imaging characteristics were summarized. Results The lesions in all 5 cases showed as single solid mass on CT images, with clear boundary and no glitches, and three of them showed no Iohulate, two showed shallow lohulate. Three lesions located at pleural cavity, and 2 in the hmg. Tumor＇ s diameter ranged 4.0 - 9. 1 cm. All lesions showed homogeneous density, without calcification, sac change and liquefied necrotic. Pleural cavity effusion was not found in all 5 cases, and pleural adhesion was found in 3 cases, pleural and the diaphragmatic muscle adhesion was found in 2 cases of them. Three lesions displayed even moderate strengthening and 2 cases mild strengthening after administra lion of contrast medium. The lesions showed equivalent T1 , longer T2 and slightly higher STIR signal intensity, the signal intensity was not uniformly distributed, and the boundary was clear on MR images. Conclusion CT and MRI can clearly show the size, shape and its relationship with surrounding tissue of SFT, while MR1 shows an advantage over CT in displaying SFT with a special characteristic, but the final diagnosis still needs pathological examination.

关 键 词：肺 孤立性纤维瘤 体层摄影术 X线计算机 磁共振成像 

分 类 号：R734.2[医药卫生—肿瘤] R814.42[医药卫生—临床医学]