海绵窦海绵状血管瘤的MRI表现(2例及文献复习)

目的:探讨海绵窦海绵状血管瘤(cavernous sinus hemangiomas,CSHAs)的MRI表现特征。方法:回顾性分析经手术病理证实的2例CSHAs的MRI表现,并复习文献资料。结果:海绵状血管瘤位于左、右侧海绵窦各1例,MRI呈分叶状,边缘清晰,呈长T1长T2信号,信号均匀,未见出血及钙化。增强扫描病变明显强化,强化程度高于垂体,并表现出渐进性、向心性强化的特点。结论:CSHAs的MR表现具有特征性,MR检查有助于作出正确的定位和定性诊断。

MRI findings of CSHAs: 2 cases report and literature review

Objective:To investigate the MR findings of cavernous hemangiomas located in the cavernous sinus.Methods:A retrospective analysis of 2 cases of cavernous hemangiomas in the cavernous sinus proved surgically and pathologically was studied.MRI examination was undergone in 2 cases.Results: One was located in the left cavernous sinus,the other was right.MRI studies revealed that the cavernous hemangiomas in cavernous sinus were segmented in shape,with sharp outlined,and the signal intensity was homogeneous with long T1 and T2,without calcification or hemorrhage.On MRI enhanced scans with T1WI,the lesions demonstrated homogeneously and highly enhanced,afferent and moderately advanced,and the enhanced signal intensity were higher than pituitary gland.Conclusion: The MRI features of cavernous hemangiomas in the cavernous sinus are characteristic,and the MR examinations are helpful for the diagnosis of their location and nature.