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摘要: 成人起病的脑白质病伴轴索球样变和色素胶质细胞(ALSP)是集落刺激因子1受体(CSF1R)基因点突变所致的一种罕见常染色体显性遗传性进展性白质脑病。患者常40~50岁起病，临床可表现为认知下降、失用、行为异常、锥体束征、锥体外系症状等，因症状不具特异性常被漏诊误诊。头磁共振成像突出表现T2-Flair/DWI高信号的脑白质病变和胼胝体受累为著的脑萎缩。本文报道一例因记忆力减退2年、双下肢无力伴发僵感1个月就诊，经临床、影像、基因检测最终诊断为ALSP的患者。
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关键词:
- 成人起病的脑白质病伴轴索球样变和色素胶质细胞 /
- 磁共振成像 /
- 基因突变 /
- 集落刺激因子1受体
Abstract: Adult-onset leukoencephalopathy with axonal spheroids and pigmented glia (ALSP) is a rare autosomal-dominant progressive leukodystrophy, caused by mutations of colony stimulating factor-1 receptor (CSF1R) gene. Age of onset is usually between 40 and 50 years old and the clinical presentations include dementia, apraxia, behavioral changes, pyramidal and extrapyramidal signs. Varying clinical manifestations have led to misdiagnoses. Magnetic resonance imaging (MRI) typically reveals white matter changes with T2-Flair/DWI hyperintensity and atrophy especially for thinning of the corpus callosum. Here, we report a young woman experiencing hypomnesia for 2 years with lower extremities weakness and rigidity for 1 month. Considering the evidence of clinical manifestations, imaging and genetic test, this patient was diagnosed with ALSP. -
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