鞍区Rathke囊肿的MRI诊断及误诊分析
Chinese Journal of CT and MRI（2013）
Abstract
目的 分析鞍区Rathke囊肿的MRI表现,提高对该病的诊断水平.方法 回顾性分析经手术与病理证实的24例Rathke囊肿的MRI资料,其中15例进行了动态增强扫描.结果 囊肿位于鞍内10例,鞍内向鞍上延伸14例,多呈圆形、卵圆形或哑铃形,10例正确诊断,11例误诊为垂体瘤,2例误诊为颅咽管瘤,1例误诊为蛛网膜囊肿.结论 鞍区Rathke囊肿的MRI表现较典型的特点为:信号多变,囊内有结节、壁无强化或线样强化,但部分不典型病例需密切结合临床病史与垂体瘤、颅咽管瘤鉴别.
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Key words
Magnetic resonance imaging,Rathke’s cleft cysts,Misdiagnosis
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