患者,男,62岁,主因左侧面部及双上肢麻木8h于2016年1月28日入院。既往有脑梗死病史3年,口服阿司匹林治疗。既往有磺胺甲口恶唑过敏史,表现为四肢皮疹,否认食物过敏史。查体:T 36.5℃,P 72次/min,R 18次/min,BP 140/80mmH g(1mmH g=0.133kP a)。发育正常,面部两侧皮肤颜色正常,泌汗正常,双侧上下肢体活动无异常,心脏查体正常。颅脑CT示(2016年1月28日):(1)脑干梗死;(2)双侧基底节区腔隙 The patient, male, aged 62, was admitted to hospital on January 28, 2016 due to numbness of the left side of the face and both upper extremities. Past history of cerebral infarction 3 years, oral aspirin treatment. Past history of sulfamethoxazole allergy, manifested as limb rashes, denied the history of food allergies. Examination: T 36.5 ° C, P 72 breaths / min, R 18 breaths / min, BP 140/80 mmHg (1 mmHg = 0.133 kPa). Normal development, normal skin color on both sides of the face, normal perspiration, both upper and lower limbs without abnormal activity, cardiac examination was normal. Brain CT showed (January 28, 2016): (1) brainstem infarction; (2) bilateral basal ganglia space