Neurology:见于脑型疟的海马硬化

2019-07-18 zxy 神经科病例撷英拾粹

39岁女性,在访问坦桑尼亚后出现发热,不适和头痛。外周血涂片可见恶性疟原虫和卵形疟原虫,寄生虫血症>14%。

39岁女性,在访问坦桑尼亚后出现发热,不适和头痛。外周血涂片可见恶性疟原虫和卵形疟原虫,寄生虫血症>14%。数小时后,患者变得反应迟钝。MRI可见深部白质点状微出血,海马弥散受限(图)。视频脑电监测5天未见癫痫发作。奎尼丁,多西环素和伯氨喹治疗3周后出院。复查MRI可见双侧海马硬化;复查脑电图正常。随访查体仅发现短期记忆缺损。

脑型疟疾中可见微出血和缺血性改变。弥漫性水肿和T2白质高信号也很常见,尽管本例不明显。因长程脑电图监测未见发作性事件,双侧海马硬化可能继发于微血管缺血。


(图:A-B:脑MRI可见DWI高信号,ADC低信号,符合急性缺血;C:SWI可见深部白质小范围微出血[箭];D:2月后复查MRI可见双侧海马硬化)

原始出处:Lillemoe K1, Brewington D2, Lord A2, et al. Teaching NeuroImages: Hippocampal sclerosis in cerebral malaria. Neurology. 2019 Jul 2;

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