病历摘要患者男性,43岁。因头晕、乏力、呕吐3个月,于1998年8月27日收入院。入院前3个月患者一直头晕、头痛,伴血压升高。乏力以下肢为著。恶心、呕吐,并逐渐加重,由每天1～2次增至30余次,主要为胃内容物,含胆汁。便秘明显,间断20余天无大便,用通便药可有少量大便。尿量无明显 Medical record summary Patient male, 43 years old. Due to dizziness, fatigue, and vomiting for 3 months, he was admitted to the hospital on August 27, 1998. Three months before admission, the patient had been dizzy, had headaches, and had elevated blood pressure. Weary of the lower limbs. Nausea and vomiting, and gradually increase, from 1 to 2 times a day to more than 30 times, mainly stomach contents, containing bile. Obvious constipation, intermittent 20 days without stool, with a small amount of bowel movements bowel movements. No significant urine output