颅骨内异位脑膜瘤的影像学诊断  

Imaging diagnosis of primary intraosseous meningioma of the skull

作　　者：梁长虹[1] 陈乃楹[1] 关月欢[1] 

机构地区：[1]广东省人民医院放射科

出　　处：《中华放射学杂志》1997年第4期259-262,共4页Chinese Journal of Radiology

摘　　要：目的：复习８例原发性颅骨内脑膜瘤的ＣＴ、平片及血管造影表现，探讨其诊断条件。材料与方法：对８例经手术及病理证实的原发性颅骨内脑膜瘤的平片、血管造影及ＣＴ征象进行分析。结果：７例良性颅骨内脑膜瘤呈膨胀性生长，１例恶性颅骨内脑膜瘤呈溶骨性。６例ＣＴ平扫呈高密度，５例加增强后明显强化。５例血管造影显示４例肿瘤颈外动脉供血，１例正常。结论：良性颅骨内脑膜瘤呈膨胀性生长，恶性者呈溶骨性生长。若结合平片、血管造影及ＣＴ扫描所见，有做出异位颅骨内脑膜瘤诊断的可能性。Purpose:To study the imaging features and diagnosis of primary intraosseous meningioma. Materials and methods: Eight cases of primary intraosseous meningioma examined with plain film, angiogram and CT were reviewed. Results: Seven cases of benign primary intraosseous meningioma showed intraosseous expansile growth; one malignant tumor appeared as an osteolytic growth on plain film and CT scan. Six cases were hyperdense (65 85 HU) on plain CT scan, five cases demonstrated marked enhancement on postcontrast CT scan. Angiogram revealed external carotid artery feeding the tumor in 4 cases and one case was normal. Conclusion: Combining the findings of plain film, angiogram and CT scan, it is possible to make a diagnosis of intraosseous meningioma.

关 键 词：脑膜瘤 CT 诊断 

分 类 号：R739.450.4[医药卫生—肿瘤]