颅中窝海绵状血管瘤的影像及其鉴别诊断  

The images and differential diagnosis of cavernous angiomas in the middle cranial fossa

作　　者：刘军波[1] 刘宜东[1] 崔爱环[1] 翟宁[1] 高建英[1] 山君来[1] 

机构地区：[1]济宁医学院附属第二医院影像科,山东济宁272051

出　　处：《医学影像学杂志》2005年第8期638-640,共3页Journal of Medical Imaging

摘　　要：目的:探讨颅底海绵状血管瘤的影像特征及其鉴别诊断,提高影像定性诊断率。方法:总结11例颅底鞍旁海绵状血管瘤(CA)病例,对其影像进行回顾性分析。结果:CT表现呈圆形略高密度均一肿块,增强后强化明显;MRI平扫T1WI、T2WI呈底向外的葫芦状、长T1长T2信号改变,增强后同样明显强化;DSA呈棉絮状染色,MRA不显影。术前影像定性诊断准确率45.5%(5/11)。结论:CT表现与其它实体肿瘤相比无特异性,定性诊断困难;MRI表现呈底向外的葫芦状、长T1长T2信号改变较具特征性;“脑膜尾”征改变并非为脑膜瘤所特有,脑外CA同样常见。Objective：To study the image features and to assess the value of MRI in differential diagnosis if cavernous angiomas（CA） in the middle cranial fossa. Methods： Eleven patients with CA in the middle cranial fossa were examined on the 0.3T AIR/S-Ⅱ MR, SE sense in transverse, cdronal, sagittal stalk to sean with plain and enhance, slide thickness 3 - 5mm. Some of the all eases were also measured on CT, DSA and MRA ,which were regarded as control.Results：A circular, slightly high density uniform lump, intensified obviously after strengthening was presented in CT image; A bottom outwardly of bottle gourd form lump, long T1 and T2 signal changes in MRI image, intense obviously after strengthening, tile waste cotton form dyes in DSA image no lump in MRA image. The rate of image in CA＇s qua diagnosis was 45.5 % （5 of 11 ）. Conclusion：The CT resembles in CA had no particularity compared with the other entity tumors. The MIR image of the bottom outivardly of bottle gourd form and long Tt and long T2 signal changes was the characteristics of CA. The meninges tail sign was not unique of the meninges lump, and was also found in the CA in outside of brain.

关 键 词：海绵状血管瘤 颅中窝 体层摄影术 X线计算机 磁共振成像 

分 类 号：R743.4[医药卫生—神经病学与精神病学] R814.42[医药卫生—临床医学]