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丘脑梅毒性脑脓肿破入第三脑室1例

Chinese Journal of Medical Imaging Technology(2019)

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Abstract
患者男,36岁,因“右侧肢体活动不灵2天,加重伴头痛、嗜睡1天”入院;1天前发热,体温最高38.0℃.入院后查体:嗜睡,呼唤可睁眼,可正确回答问题,双侧瞳孔等大等圆,直径约3.0 mm,对光反射灵敏,左侧肢体肌力V级,肌张力正常;右侧肢体肌力Ⅳ级,肌张力高,生理反射存在,病理反射未引出,颈部稍抵抗.头部MRI:左侧丘脑见约3.5 cm×2.6 cm类圆形异常信号,双侧脑室及第三脑室扩张;DWI呈高信号,病变周围见大片水肿,第三脑室内局限性高信号(图1A);增强扫描病变呈环形强化(图1B).MRI提示炎性病变,考虑为脓肿.脑脊液常规检查:蛋白质定量1.41 g/L,葡萄糖1.82 mmol/L,氯化物129.9 mmol/L,白细胞1 516×106/L.快速血浆反应素实验阳性.脑脊液梅毒螺旋体抗体阳性.综合诊断:丘脑脓肿合并神经梅毒.予抗生素驱梅联合激素治疗(青霉素+泼尼松),并行脑室-腹腔分流术.术后10天复查头部MRI显示脓腔缩小,脑室内脓液吸收(图1C、1D),患者嗜睡症状缓解.
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