脑胞内原虫病是由脑胞内原虫引起的慢性、隐性原虫性疾病。据国外报道小鼠、大鼠、豚鼠、猫、齁鼱、兔、狗、猪、羊、猴等多种哺乳动物出现过脑胞内原虫的自然感染。国内仅见家兔脑胞内原虫病报告,我们在1985年初的工作中遇到Wistar大鼠脑胞内原虫感染的病例,简报如下。自我院实验动物场领取Wistar大鼠128只,体重150—200克,雌雄兼有。临床观察:发育营养良好,未见偏颈、歪头、前后肢麻痹、震颤旋转运动等神经症和其它异常现象。大体解剖:脑、脊髓、肾、肝、脾等脏器未见明显病理改变。病理组织学检查:在 Intracerebral protozoal disease is a chronic, implicit protozoal disease caused by protozoal cytoplasm. According to foreign reports, mice, rats, guinea pigs, cats, cats and dogs, rabbits, dogs, pigs, sheep, monkeys and other mammals have been infected with natural intracerebral protozoa. Domestic only saw intracerebral protozoan parasite disease report, we encountered Wistar rat intracytopathogenic protozoal infections in the work of early 1985, the briefing is as follows. A total of 128 Wistar rats were collected from the experimental animal farm in our hospital, weighing 150-200 grams, both male and female. Clinical observation: good developmental nutrition, no partial neck, head tilt, paralysis of front and rear limbs, tremor and other motor neurotransmitters and other abnormalities. Gross anatomy: brain, spinal cord, kidney, liver, spleen and other organs showed no significant pathological changes. Histopathological examination: in