摘要
目的 :分析颅内表皮样囊肿的MRI表现。方法 :收集经手术病理证实的颅内表皮样囊肿 14例 ,重点分析肿瘤的好发年龄、部位、MRI信号特点及肿瘤增强情况。结果 :在本组病例中 ,年龄最小 16岁 ,最大 45岁 ,平均年龄 2 8岁 ,T1加权像呈低信号 ( 9例 ) ,低、等混杂信号 ( 3例 ) ,高信号 ( 2例 ) ,肿瘤在T2 加权像上均呈高信号 ,7例行增强扫描均无强化。结论
Objective:To analyze MRI features of intracranial epidermoid cyst.Methods:Fourteen patients with histologically proven intracranial epidermoid cysts were studied.MRI features of those tumors were analyzed with emphasis on tumor location, signal characteristics and contrast enhancement.Results:The tumors showed hypointensity (9/14),heterogeneous signal intensity(3/14) and hyperintensity (2/14) on T1WI and marked hyperintensity on T2WI.On contrast enhanced MRI,the tumors presented no enhancement.Conclusions:There were characteristic MRI features in diagnosis of intracranial epidermoid cyst.
出处
《放射学实践》
2000年第3期196-197,共2页
Radiologic Practice
关键词
颅内表皮样囊肿
磁共振成像
诊断
Intracranial Epidermoid cyst Megnetic resonance imaging Diagnosis
