巴西青年,29岁,平时甚健。入院前20天突感排尿困难,并有尿频和尿急。当时诊断为性病,用青霉素治疗后略有进步。不久症状加重,出现两下肢酸痛,脚底发热,背下部痛感,排尿困难,大便失禁等。神经科检查有下腰部压痛,两下肢无力,上肢各种反射增强,两侧踝反射及跖反射均阴性,感觉及小脑检查均在正常范围内。血常规:白 Brazilian youth, 29 years old, usually very healthy. Sudden sense of dysuria 20 days before admission, and urinary frequency and urgency. At that time diagnosed as STD, with penicillin slightly improved after treatment. Shortly after the symptoms increased, there are two lower extremity sore feet, fever, back pain, dysuria, fecal incontinence and so on. Neurological examination of the lower loin tenderness, weakness in both lower extremities, various reflexes increased, both sides of the ankle reflex and plantar reflex were negative, sensory and cerebellum were in the normal range. Blood: white