本病系指由体内原发癌肿所引起,并非由其直接转移所致的一组神经、肌肉疾病。其发病机理尚不清楚,有人认为可能与自身免疫、病毒感染、癌的毒副产物,以及内分泌和营养代谢障碍等因素有关。其发生率约为0.5～16.4%,以肺癌所致最常见(16%),其他依次为卵巢癌(11%)、乳腺癌(4%)、胃癌,前列 The disease refers to the body caused by the primary cancer, not caused by its direct transfer of a group of neurological and muscular diseases. Its pathogenesis is not clear, some people think it may be related to autoimmune, viral infection, cancer by-products, as well as endocrine and nutritional disorders and other factors. The incidence was about 0.5-16.4%, most commonly due to lung cancer (16%), followed by ovarian cancer (11%), breast cancer (4%), gastric cancer, forefront