癌肿引起的神经系统损害并不少见 ,临床上其常见原因为癌肿局部浸润或压迫、癌肿转移、癌肿的非转移性神经系统损害及癌肿放射治疗或化学治疗所致。当神经系统以外的某一脏器有原发癌时 ,神经系统无直接侵犯和转移而出现神经系统并发症 ,称之为癌性神经病 ,又称副肿瘤神经系统 Nervous system damage caused by cancer is not uncommon, and its common causes of clinical invasion or compression of local cancer, cancer metastasis, non-metastatic cancer of the nervous system damage and cancer caused by radiation therapy or chemotherapy. When an organ other than the nervous system has primary cancer, the nervous system has no direct invasion and metastasis of neurological complications, called cancer neuropathy, also known as paraneoplastic nervous system