病例介绍患者男,37岁,住院号346984。因头晕、面黄伴尿色黄2个月,于1990年9月13日入院。近2个月来觉头晕、四肢无力、面黄、尿色黄、记忆力减退、食欲不振。无恶心、呕吐、便秘、血便、黑便等。伴肢体无力渐重,生活不能自理。既往体健。有饮酒史17年。无阳性家族史。体检:体温36.7℃,脉搏100次/ Case description Male patient, 37 years old, hospital number 346984. Due to dizziness, face yellow with urine yellow 2 months, on September 13, 1990 admission. Nearly 2 months to feel dizzy, weakness, face yellow, dark urine, memory loss, loss of appetite. No nausea, vomiting, constipation, bloody stool, melena and so on. Accompanied limb weakness, life can not take care of themselves. Past physical health. Have a history of drinking 17 years. No positive family history. Physical examination: body temperature 36.7 ℃, pulse 100 times /