Neurology:见于活动性神经结节病的螺旋形髓静脉

2019-12-24 zyx 神经科病例撷英拾粹

47岁男性,活检证实为结节病,表现为认知功能下降和尿失禁6月。

47岁男性,活检证实为结节病,表现为认知功能下降和尿失禁6月。神经影像学检查符合活动性神经结节病,并可见明显的右侧髓静脉不对称扩张和螺旋形外观(图)。髓静脉扩张是近来描述的神经结节病的一种成像模式,可见于33%的患者。其出现机制尚不明确,可能由于静脉周围炎症或淋巴引流功能障碍所致。磁敏感加权成像通过定位脱氧血液的顺磁信号来突出静脉。髓静脉扩张是神经结节病的常见表现,可作为诊断标准之一,且可充当疾病活动的生物标志物。


(图:A:FLAIR可见右侧额叶和顶叶不对称脑回水肿[虚线];B:整个右侧半球均可见影脑膜[空心箭头]和软脑膜[实心箭头]强化;C-D:SWI可见右侧髓静脉扩张扭曲[白箭],相位衬度成像[phase-contrast imaging]上进一步证实)

原始出处:Caton MT Jr, Yau WW, Huang RY, Bhattacharyya S. Teaching NeuroImages: Corkscrew medullary veins in active neurosarcoidosis.Neurology. 2019 Nov 5;93(19):e1832-e1833.

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    2020-02-21 hb2008ye
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    2020-11-26 fusion
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