患者男性,32岁。因左侧面部麻木伴疼痛反复发作两年余,加重并左咬肌萎缩,抽搐两个月,经多方治疗无效收入院。两年前无诱因感左面部麻木,后枕部疼痛,自认为受凉所致,口服速效感冒胶囊及布络芬8天无效。后去某医院就诊,经检查左三叉神经1～2支分布区感觉略减退,脑电图正常,颅底平 Male patient, 32 years old. Due to the left side of numbness with recurrent pain more than two years, aggravating and left masseter muscle atrophy, convulsions for two months, after multi-treatment ineffective income hospital. Two years ago, there was no incentive to feel left numbness, occipital pain, since that is caused by cold, oral available cold capsules and fenofen 8 days invalid. Go to a hospital after treatment, the inspection of the left trigeminal nerve distribution of 1 to 2 feeling slightly diminished, normal EEG, skull base level