答：神经障碍系中枢神经系统和周围神经系统疾病。
A: Neurological disorders are diseases of the central and peripheral nervous system.
患者可有中枢神经系统或周围神经系统的肿瘤病变，包括许旺氏细胞瘤、脑膜瘤、室管膜瘤、胶质瘤、神经纤维瘤等。
Affected individuals develop tumors of the central and peripheral nervous system, including schwannomas (typically of the vestibulum), meningiomas, ependymoma, gliomas, and neurofibromas.
结论：提示锰不仅对中枢神经系统产生损害，对周围神经系统也产生不同程度的损害。
Conclusion: Manganese was harmful to not only the central nerve system but also the peripheral nerve system.
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