虽然颅内皮样囊肿并不少见,但发生于小脑实质内极少,本文报道了1例发生于小脑蚓部的皮样囊肿。1　病历简介患儿,男,6岁,因头痛、呕吐12天,发热4天来院检查。查体:体温39℃,神志清楚,项强,四肢肌力大致正常,双腱反射不亢进,病理征未引出,双侧视乳头边界不清,后枕部未见皮下局部 Although the intracranial dermoid cyst is not uncommon, but occurred in the cerebellar parenchyma very rarely, this article reported a case occurred in the cerebellar vermis dermoid cyst. 1 medical records Children, male, 6 years old, due to headache, vomiting for 12 days, 4 days fever to the hospital. Physical examination: body temperature 39 ℃, conscious, Xiangqiang, limb muscle strength is generally normal, double tendon reflexes are not hyperthyroidism, the pathological signs did not lead to bilateral bilateral nipple border is not clear, no occipital subcutaneous local