患者,男,15岁,因头痛7+d入院。患者于7+d前无诱因出现左侧顶枕部疼痛,间断发作,晚上及运动后头痛较重,休息后可稍缓解,伴间断头晕和走路不稳,偶伴恶心,无发热、呕吐、复视、视力下降和抽搐等症状,遂到医院就诊,行头颅CT示“梗阻性脑积水,四脑室占位病变”。入院查体:一 Patient, male, 15 years old, admitted to hospital due to headache 7 + d. Patients in the 7d before no incentive to appear on the left top of the occipital pain, intermittent attacks, heavy headache after the night and after exercise, can be slightly relieved after a break, with intermittent dizziness and walking instability, with nausea, no fever, vomiting, Diplopia, decreased visual acuity and convulsions and other symptoms, then went to the hospital, head CT showed “obstructive hydrocephalus, four-ventricle space lesions.” Admission examination: one