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作 者:王骏 洪桂洵[2] 饶良俊[2] 李树荣[2] 初建平[2] 杨智云[2]
机构地区:[1]中山火炬开发区医院放射科,广东528437 [2]中山大学附属第一医院医学影像科,广州510080
出 处:《影像诊断与介入放射学》2013年第3期163-166,共4页Diagnostic Imaging & Interventional Radiology
摘 要:目的探讨神经纤维瘤病Ⅱ型(NF2)中颅神经受累的MR表现。方法 23例NF2患者均行头颅常规MR平扫及3D-FLASH增强扫描,MRI上颅神经增粗或形成结节作为颅神经受累标准,按12对颅神经根颅内段解剖路径观察和统计颅神经受累情况。结果 23例12对颅神经受累情况如下:Ⅰ(嗅)神经1例(4.3%,单侧)、Ⅱ(视)神经0例,Ⅲ(动眼)神经7例(30.4%,单侧4例,双侧3例)、Ⅳ(滑车神经)1例(4.3%,单侧)、Ⅴ(三叉神经)15例(65.2%,单侧5例,双侧10例)、Ⅵ(外展神经)1例(4.3%,单侧受累)、Ⅶ(面神经)5例(21.7%,单侧4例,双侧1例)、Ⅷ(听神经)23例(100%,单侧5例,双侧18例)、Ⅸ/Ⅹ/Ⅺ(舌咽/迷走/副神经)受累9例(39.1%,单侧3例,双侧6例)、Ⅻ(舌下神经)6例(26.1%,单侧3例,双侧3例)结论 NF2除了累及听神经外,常累及视神经以外的其他颅神经,诊断时应沿颅神经路径进行观察,以防漏诊。Objective To investigate cranial nerve involvement of type II neurofibromatosis(NF2). Methods Twenty- three NF2 patients underwent conventional and contrast-enhanced 3D-FLASH MRI. Cranial nerve involvement was diagnosed when thickening or nodule was observed in the cranial nerve. Results Cranial nerve involvement of the 23 patients included unilateral olfactory schwannoma (1/23, 4.3% ), unilateral (4) or bilateral (3) oculomotor nerve schwannomas (7/23, 30.4%), unilateral trochlear sehwannoma (1/23, 4.3%), unilateral (5) or bilateral (10) trigeminal schwannomas (15/23, 65.2%), unilateral abducens schwannoma (1/23, 4.3% ), unilateral (4) or bilateral (1) facial nerve schwannomas (5/23, 21.7% ), unilateral (5) or bilateral (18) vestibular schwannomas (23/23, 100%), unilateral (3) or bilateral (6) glossopharyngeal, vagal, or accessory schwannomas (9/23, 39.1%), and unilateral (3) or bilateral (3) hypoglossal schwannomas (6/23, 26.1% ). Conclusions In addition to universal involvement of the auditory nerve, NF2 often involved other cranial nerves except for the optic nerve. The path of the cranial nerves should be carefully inspected on MRI
关 键 词:神经纤维瘤病Ⅱ型 磁共振成像 快速小角度激发 颅神经
分 类 号:R749.4[医药卫生—神经病学与精神病学]
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