| 徐庆云.颅内表皮样囊肿的影像学诊断[J].中国医学影像技术,2001,17(3):217~218 |
| 颅内表皮样囊肿的影像学诊断 |
| Imaging Diagnosis of Intracranial Epidermoid Cyst |
| 投稿时间：2000-09-15 |
| DOI： |
| 中文关键词: 表皮样囊肿 X线计算机,体层摄影术 磁共振成像 |
| 英文关键词:Epidermoid cyst Tomography, X-ray computed Magnetic resonance imaging |
| 基金项目: |
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| 摘要点击次数: 2015 |
| 全文下载次数: 957 |
| 中文摘要: |
| 目的 评价颅内表皮样囊肿的影像学特征。 方法 回顾性收集16例经手术与病理证实的表皮样囊肿。男11例,女5例,年龄29~56岁,平均年龄45岁;行CT平扫与增强检查4例,行MRI平扫与增强检查6例,同时行CT与MRI检查6例。 结果 肿瘤发生于桥小脑角区5例,鞍上区4例,鞍旁区3例,四脑室2例,小脑蚓部和小脑延髓池各1例。CT平扫肿瘤呈脑脊液样低密度,大多形态不规则,少数呈圆形、卵圆形,均有不同程度占位效应,增强后均无强化。MRI检查,大多数类似脑脊液样信号,T1WI呈现低信号,T2WI呈高信号,少数在T1WI上呈高信号或混杂信号。 结论 CT与MRI诊断表皮样囊肿均有重要价值,MRI显示表皮样囊肿优于CT。 |
| 英文摘要: |
| Objective To evaluate the imaging features of intracranial epidermoid cyst. Methods To collect 18 cases surgically and pathologically retrospectively. These patients ranged in age from 29 to 56 years (mean age 45 years );11 cases were males and 5 cases were female;3 cases were examined with CT ,6 cases were examined with CT and MRI; all cases were enhanced. Results 5 cases were located in cerebellopontine angle, 4 cases were located in suprasellar cisten,3 cases were near by sellaturcica,2 cases were located in fourth ventricle, one from the other 1 cases was located in cerebellomedullary cisten and in vermis. Using CT plain scan, the few ones were round or oval. All tumors had differ in mass effect, and had no enhancement. On MRI, quite a lot tumors showed hypointensity that they seem cerebrospinal fluid on T1WI and hypertensity on T2WI; a few the tumors showed hypertensity or heterogeneous intensity on T1WI. Conclusion CT and MRI play an important role and MRI was better than CT in the diagnosis of epidermoid cyst. |
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