Neurology:闭锁综合征患者的影像学“心形”外观

2019-01-31 zyx整理 神经科病例撷英拾粹

85岁男性,表现为反复呕吐和眩晕48小时,伴快速进展性吞咽困难和四肢瘫痪。

85岁男性,表现为反复呕吐和眩晕48小时,伴快速进展性吞咽困难和四肢瘫痪。MRI-MRA可见延髓旁正中梗死(图A-C),称“心形”征,这是一种罕见的后循环卒中特点,因脊髓前动脉闭塞所致(图D)。临床表现由其前后受累部位决定。四肢瘫痪,舌肌无力和感觉缺失,分别定位于锥体束,舌下神经核和内侧丘系,本例有反复呕吐,双侧面部瘫痪和水平性眼肌麻痹,提示病灶延伸至脑桥,伴极后区,面神经丘和旁正中脑桥网状结构受累。

(图:A-C:DWI和FLAIR可见双侧旁正中延髓梗死,延伸至脑桥累及第四脑室底部;D:MRA可见左侧椎动脉闭塞,左侧椎-基底动脉交界处血栓形成和狭窄)

原始出处:Cardenas YM, Prabhu A, Zhang Y.Teaching NeuroImages: The heart sign in a patient with apparent locked-in syndrome.Neurology. 2018 Nov 27;91(22):e2102-e2103.

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