（七）获得性神经节细胞损害获得性无神经节细胞症和神经节细胞减少症的原因可分为血管性或非血管性：非血管性疾病包括美洲锥虫病（Chagasdisease，恰加斯病）、维生素B1</sub>缺乏症以及慢性感染（如结核病等）。
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