摘要
目的 :总结分析 38例后颅窝肿瘤的CT或MRI特征 ,提高对后颅窝肿瘤的诊断和鉴别诊断水平。方法 :38例肿瘤中 34例经手术病理证实 ,4例经临床影像诊断。所有患者均行CT平扫和增强扫描 ,其中 8例行MR检查。结果 :听神经瘤 9例 ,脑膜瘤 5例 ,Ⅰ级星形细胞瘤 2例 ,Ⅱ -Ⅲ级星形细胞瘤 4例 ,少枝胶质细胞瘤 1例 ,血管母细胞瘤 3例 ,室管膜瘤、髓母细胞瘤、三叉神经瘤、单发脑转移瘤各 2例 ,胆脂瘤及蛛网膜囊肿各 1例 ,以上均为手术病理证实 ;经临床影像诊断转移瘤 4例。结论 :后颅窝瘤有其好发部位 。
Objective:41 cases of posterior fossa tumors were analyses with CT or MRI imaging and differential diagnoses were discussed.Methods: 34 of 38 cases were proved with pathology and 4 cases with clinical and imaging features. All 38 cases with CT and 8 cases with MRI were analysed retrospectively.Results:34 cases including acoustic neuromas(9 cases), meningiomas(5cases), astrocytomas(6 cases),oligodendroglioma(l case),ependymomas(2 cases),angioreticulomas(3 cases),medulloblastomas (2 cases) , trigeminal neuromas(2 cases) , cholesteatoma( I case), arachnoid cyst( I case) , single metastases(2 cases) were proved with pathology; other four cases were proved metastases(4 cases) with clinical and imaging features.Conclusion:CT and MRI can show obviously posterior fossa tumors according to their different location and features.
出处
《医学影像学杂志》
2001年第3期164-166,共3页
Journal of Medical Imaging
关键词
后颅窝肿瘤
成像
CT
NMR
Posterior fossa, Tumor
Tomography, X ray Computed
Magnetic resonance imaging
