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血吸虫感染中枢神经系统的症状或有或无。当中枢神经系统血吸虫病呈现出明确症状时,其往往是血吸虫感染最为严重的表现之一。脑型血吸虫病以日本血吸虫感染为主,而脊髓型血吸虫病则以曼式血吸虫感染为主,同时也有埃及式血吸虫感染。关于中枢神经系统血吸虫病虫卵入侵途径,目前主要存在虫卵栓塞和成虫产卵两种学说,前者分为动脉栓塞、静脉栓塞和Batson椎静脉途径,成虫亦可循上述途径入侵中枢神经系统产卵。由于血吸虫种属以及机体感染阶段的差异,血吸虫进入中枢神经系统的途径亦有所不同。此外,肝硬化门脉高压在其入侵过程中也起重要作用。本文对中枢神经系统血吸虫病入侵途径的研究进展作一综述。
Schistosoma infection CNS symptoms with or without. When the central nervous system schistosomiasis shows definite symptoms, it is often one of the most serious manifestations of schistosomiasis infection. Schistosoma japonicum is mainly infected with Schistosoma japonicum, while Schistosoma japonicum is mainly infected by Schistosoma mansoni, and also has the infection of Egyptian schistosomiasis. About the CNS schistosomiasis egg invasion, there are two main theories of egg embolism and oviposition of eggs, the former is divided into arterial embolism, venous thrombosis and Batson vertebral venous route, the adult worm can also follow the above-mentioned method of invasion of the central nervous system egg. Schistosoma access to the central nervous system is also different due to the different species of schistosomes and the stage of infection. In addition, cirrhotic portal hypertension also plays an important role in its invasion. This article summarizes the progress of invasion of schistosomiasis in the central nervous system.