例1,男性,55岁。因皮下结节31年、抽搐2年,于1983年1月28日入院。抽搐表现为癫痫大发作,共发作十余次。无头痛、呕吐。体检:神志清,左侧口角下方有一皮下结节。眼底视神经乳头无水肿。脑CT检查:右侧顶叶见6×5.5cm低密度灶,近颅骨,中线结构向对侧移位;无增强效应。囊尾蚴皮内试验阳性。术后病理检查为猪囊尾蚴。最后诊断:蛛网膜下腔巨大猪囊尾蚴。 Example 1, male, 55 years old. 31 years of subcutaneous nodules, convulsions for 2 years, January 28, 1983 admission. Twitch performance for epileptic seizures, a total of more than 10 times. No headache, vomiting. Physical examination: Consciousness, there is a subcutaneous nodule below the left side of the mouth. Fundus optic nerve head without edema. Brain CT examination: see the right parietal lobe 6 × 5.5cm low density lesions, near the skull, midline structure to the contralateral shift; no enhancement effect. Cysticercus intradermal test positive. Postoperative pathological examination of Cysticercus cellulosae. The final diagnosis: a huge cysticercus subarachnoid cyst.