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颅内三叉神经鞘瘤的CT及MRI诊断

Chinese Journal of Otorhinolaryngology-Skull Base Surgery(2007)

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Abstract
目的分析颅内三叉神经鞘瘤的CT和MRI表现。方法搜集36例经手术和病理证实的颅内三叉神经鞘瘤的CT和MRI资料,探讨颅内三叉神经鞘瘤分型、诊断要点及有关鉴别诊断。结果颅内三叉神经鞘瘤分三型:颅后窝型(8例)、颅中窝型(4例)及骑跨型(24例)。病灶信号混杂,易囊变(12例),增强后可见不均匀强化;CT能看到岩尖骨质吸收或破坏(17例)。结论CT和MRI的联合应用对三叉神经鞘瘤的定位、定性诊断具有较高的准确性,对临床治疗及手术方式的选择具有指导作用。
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Key words
Neurinoma,MRI,CT,Trigeminal
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