摘要
目的汇报有关第四脑室占位性病变CT和MRI鉴别诊断经验。方法回顾性分析7例经手术病理证实的第四脑室占位性病变的CT和MRI表现,并结合相关文献资料。结果髓母细胞瘤3例,室管膜瘤2例,星形细胞瘤和隐球菌性肉芽肿各1例。结论第四脑室占位性病变无特异性影像征象,但其发病年龄、肿块起源及CT和MRI表现有助于鉴别诊断,其中分清肿块来源是鉴别诊断的关键,MRI在第四脑室占位性病变的鉴别诊断方面优于CT且前景广阔。
Objective To present the experience about differential diagnosis of the fourth ventricular masses in CT and MRI.Methods Seven cases in the fourth ventricular masses performed with CT or/and MRI before operation and confirmed by pathology were analyzed retrospectively.And some related literatures were studied.Results There were 3 cases with medulloblastoma,2 cases with ependymoma,an astrocytoma and a cryptococal granuloma.Conclusions There are no specific imaging signs of ventricular masses in CT and MRI.The features that can help us to differentiate the fourth ventricular are the onset age,the origin of tumors and the imaging findings showed in CT and MRI.It is the key point that the tumor whether comes from the fourth ventricle.MRI is superior to CT in differential diagnosis of the fourth ventricular masses,and has the broad prospects in which.
出处
《遵义医学院学报》
2010年第2期153-155,共3页
Journal of Zunyi Medical University
关键词
第四脑室
占位
诊断
断层摄影X线计算机
磁共振
the fourth ventricular
mass
diagnosis
Tomography X-ray
magnetic resonance imaging