| 颅骨表皮样囊肿的CT及MRI特征 |
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| 引用本文： | 张丽红,张云亭,张敬,张权,孙志华.颅骨表皮样囊肿的CT及MRI特征[J].临床放射学杂志,2010,29(3). |
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| 作者姓名： | 张丽红 张云亭 张敬 张权 孙志华 |
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| 作者单位： | 天津医科大学总医院放射科,300052 |
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| 摘 要： | 目的探讨颅骨表皮样囊肿(SEC)的CT和MRI影像学特点,以提高对该病的认识。资料与方法回顾性分析10例经手术病理确诊的SEC的CT及MRI表现。9例行CT平扫;8例行MRI检查,其中6例包含扩散加权成像(DWI)序列。8例MRI检查中2例行MRI平扫,4例行MRI平扫加增强检查,2例只行MRI增强检查;其中7例同时行CT及MRI检查。结果病变均为单发,起自板障。9例CT平扫示颅骨呈膨胀性改变,7例密度不均,其中5例病变可见钙化;2例病变密度均匀。6例MRI平扫,4例呈以长T1、长T2为主混杂信号,1例呈均匀长T1、长T2信号,1例呈短T1、长T2信号。6例DWI序列中5例呈高信号,1例呈低信号;表观扩散系数(ADC)图重组后,1例呈稍高信号,1例呈高信号,4例呈稍低信号。6例MRI增强检查,2例病变无强化;4例病变内部和/或边缘强化,同时1例邻近硬膜明显强化。结论SEC的CT及MRI表现有一定的特征性,影像学检查有助于其定位及定性诊断。
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| 关 键 词： | 颅骨 表皮样囊肿 体层摄影术 X线计算机 磁共振成像 |
CT and MRI Characteristics of Skull Epidermoid Cyst |
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| ZHANG Lihong,ZHANG Yunting,ZHANG Jing,et al..CT and MRI Characteristics of Skull Epidermoid Cyst[J].Journal of Clinical Radiology,2010,29(3). |
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| Authors: | ZHANG Lihong ZHANG Yunting ZHANG Jing |
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| Institution: | ZHANG Lihong,ZHANG Yunting,ZHANG Jing,et al.Department of Radiology,General Hospital of Tianjin Medical University,Tianjin 300052,P.R.China |
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| Abstract: | Objective To study the CT and MR features of skull epidermoid cyst.Materials and Methods CT and MRI findings of 10 cases with skull epidermoid cysts confirmed by surgery and pathology were summarized and analyzed.Plain CT scans were performed in 9 cases.MRI scans were performed in 8 cases,2 patients of which examined by MRI plain scan and 2 examined by contrast-enhanced scan.4 patients examined by both MRI plain scan and contrast-enhanced scan.Both CT and MRI examinations were performed in 7 cases.Results A... |
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| Keywords: | Skull Epidermoid cyst Tomograph X-ray computed Magnetic resonance imaging |
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