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在津巴布韦,曾报道过人体感染常现丝虫(Dipetalonema perstans)引起的脑神经疾患。本文作者从2例患者的脑脊液中检到一种微丝蚴,虫体大小为172×5微米,较常现丝虫为小。作者又研究了非洲猴中枢神经系统中的一种新的秘鲁丝虫(Meningonema pe-ruzzii),发现成虫居于软脑膜,特别在脑干背面的组织中,微丝蚴出现于末梢血液和脑脊液,与上述2例脑脊液中查见的微丝蚴形态极为相似。保存于2%福马林溶液中的微丝蚴大小为170×4～5微米,在高倍镜下常可见短而紧张的鞘膜,用酒精固定和苏木素染色的厚血片中,显示虫体紧缩而鞘膜较虫体为长,但用吉氏液染色,形态极似常现丝虫。
In Zimbabwe, there have been reports of cerebral neuropathies caused by Dipetalonema perstans. The authors detected a microfilarea from the cerebrospinal fluid of 2 patients. The size of the worm was 172 × 5 μm, which was smaller than the filariasis. The authors also studied a new Meningonema pe-ruzzii in the central nervous system of African monkeys and found that adults live in the pia mater, especially in the tissue behind the brainstem. Microfilaria is present in the peripheral blood and cerebrospinal fluid, With the above two cases of cerebrospinal fluid check the microfilariae morphology is very similar. Microfilaria, which is stored in a 2% solution of formalin, has a size of 170 × 4 to 5 μm. Short and tight sheaths can often be seen under high magnification. In thick pieces stained with alcohol and hematoxylin, Tight and sheath than worms for a long time, but with Ji liquid staining, morphology is often like filaria.