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目的 探讨孤立性纤维性肿瘤 (solitaryfibroustumor,SFT)的影像学及病理学特征。资料与方法 回顾性分析 1 0例胸膜及腹部SFT的影像学表现 ,并与病理组织学及免疫组化对照观察。结果 (1 )SFT多见于胸腔 ,平片呈边缘光滑的孤立性肿块。 (2 )CT检查孤立性肿块部分可见囊性退变区 ,增强扫描肿瘤实质部分明显强化。 (3)MRI肿瘤实质在T2 WI上呈低信号 ,较大的肿瘤在T2 WI上呈高低混杂信号且可见血管流空信号。 (4)病理学检查肿瘤由梭形细胞构成 ,有多种排列方式 ,免疫组化CD34阳性。结论 SFT是一种间叶源性软组织肿瘤 ,影像学上见孤立性、境界清楚的软组织肿块时应考虑到该肿瘤可能 ,确诊须靠病理学及免疫组化检查
Objective To investigate the imaging and pathological features of solitary fibroblast (SFT). Materials and Methods The imaging findings of 10 cases of pleural and abdominal SFT were retrospectively analyzed and compared with histopathology and immunohistochemistry. Results (1) SFT more common in the chest, plain radiographs of solitary smooth edges. (2) CT examination of isolated lumps visible cystic degeneration, enhanced scan of the substantial part of the tumor was significantly enhanced. (3) The tumor of MRI showed low signal on T2 WI, and the larger tumor showed mixed signal of high and low on T2WI and visible signal of vascular flow empty. (4) Pathological examination The tumor consists of spindle cells, there are many kinds of arrangement, immunohistochemical CD34 positive. Conclusions SFT is a mesenchymal soft tissue tumor, which is considered solitary in imaging. The tumor should be considered when the tumor is clear in the realm. Pathological examination and immunohistochemistry