颅内孤立性纤维瘤与血管外皮细胞瘤MRI表现与病理对照  

Comparison of MRI features and pathological findings between intracranial solitary fibrous tumors and hemangiopericytomas

作　　者：李俊[1] 莫茵[1] 吴迪[1] 赵卫[1] 孙学进[1] 彭超[1] LI Jun;MO Yin;WU Di;ZHAO Wei;SUN Xuejin;PENG Chao(Department of Medical Imaging ,the First Affiliated Hospital of Kunming Medical University ,Kunming 650032,Chin)

机构地区：[1]昆明医科大学第一附属医院医学影像科,云南昆明650032

出　　处：《实用放射学杂志》2018年第4期497-500,共4页Journal of Practical Radiology

摘　　要：目的对比分析颅内孤立性纤维瘤（SFT）与血管外皮细胞瘤（HPC）MRI表现，结合病理，以提高对二者的认识。方法回顾性分析13例颅内SFT和9例HPC的MRI和病理资料。结果颅内SFT病灶形态规则，边界清晰，病灶内常见T2低信号区，增强后上述低信号区明显强化，称为“阴阳征”；灶内出血少见，灶周水肿较轻，邻近颅骨骨质破坏少见。HPC病灶形态不规则，边界不清，病灶内常见T2高信号，灶内出血多见，灶周水肿明显，邻近颅骨骨质破坏多见。对比2组病灶形状、T2信号、“阴阳征”、灶内出血、邻近颅骨骨质破坏，差异有统计学意义（P〈0．05）；对比2组病灶内囊变／坏死、灶周水肿、与硬脑膜关系及脑膜尾征，差异无统计学意义（P〉0．05）。颅内SFT与HPC免疫组化表现类似：Vim、CD34、CD99、Bcl-2阳性，EMA阴性。结论颅内SFT与HPC的MRI表现在病灶形状、T2信号、“阴阳征”、灶内出血、邻近颅骨骨质破坏等方面存在差异，充分认识MRI表现，有助于诊断并初步判断其预后。Objective To analyze MRI features of intracranial solitary fibrous tumors （SFT） and hemangiopericytomas （HPC）and combined with pathology to improve recognition of the diseases.Methods MRI and pathologic data of 13 intercranial SFT and 9 HPC were analyzed retrospectively.Results The intracranial SFT were round or oval, well-defined, with internal hypointensity and obviously enhanced area on T2 and enhanced MRl-so called ＂yin-yang＂ pattern, rare hemorrhage, slight peritumoral edema and rare skull destruction.The HPC were lobulated or irregular, unclear margin, hyperintensity on T2, common hemorrhage, obvious peritumoral edema and common skull destruction.The differences between the two tumors were significant in relation to the tumor shape,T2 signal, ＂yin-yang＂ pattern, hemorrhage and skull destruction （P〈0.05）.There were no significant differences in relation to the internal cystic necrosis,pefitumoral edema, dural attachment and dural tail sign （P〉0.05 ）.Both of them showed the similar immunohistoehemieal features：the expression of Vim,CD34,CD99 and Bel-2 were positive,and the expression of EMA was negative.Conclusion The MRI features of intracranial SFT and HPC are different in tumor shape,T2 signal,＂yin-yang＂ pattern,hemorrhage and skull destruetion.MRI features are helpful to diagnosis and judge prognoses preliminary.

关 键 词：颅内 孤立性纤维瘤 血管外皮细胞瘤 磁共振成像 病理学 

分 类 号：R739.45[医药卫生—肿瘤] R445.2[医药卫生—临床医学]