患者，男性，３９岁，１月前晨起发现右侧上、下肢麻木，犹如戴着手套、袜套，针刺手指反应迟钝，行走及抓握无变化。入院体查：神清，言语清，右侧面部及右侧上下肢痛、触觉减退，以痛觉明显。右侧腱反射增强，右侧巴宾基征阳性，四肢活动自如，共济运动无异常。考虑脑干病变 Patient, male, 39 years old, early January morning found on the right upper and lower limb numbness, as if wearing gloves, socks, acupuncture fingers unresponsive, walking and gripping no change. Admission investigation: God clear, clear language, the right side of the face and upper and lower extremity pain, tactile decline, to pain evident. Enhanced right tendon reflexes, right Babink sign positive, freely moving limbs, Masonic movement was normal. Consider brainstem lesions