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脐尿管囊肿的CT及MRI表现

Radiologic Practice(2008)

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Abstract
目的:探讨脐尿管囊肿的CT及MRI表现特征。方法:对6例经病理证实的脐尿管囊肿的CT及MRI表现特点进行回顾分析。结果:行CT检查4例,行MRI检查2例。6例脐尿管囊肿中2例为单纯性囊肿,4例脐尿管囊肿伴感染;囊肿位于脐与膀胱之间近中线;单纯性囊肿CT和MRI主要表现为囊壁规则,界限清楚,密度和信号均匀;伴感染者CT和MRI主要表现为多囊性,囊壁增厚,边缘不规则,与周围组织界限不清。MRI能清晰显示囊肿信号特征,囊肿与膀胱和脐尿管的关系。结论:由于脐尿管囊肿的特殊解剖位置特点,CT及MRI能做出正确定位及定性诊断,当囊肿伴感染时由于MR对囊肿信号特征性表现,并能行冠状及矢状面扫描,能清晰显示囊肿与膀胱和脐尿管的关系,对明确诊断具有极高的价值。
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Key words
X-ray computed,Tomography,Urachal cyst,Magnetic reasonance imaging
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