男 ,73岁 ,因反复腹胀 ,便秘 2年入院。患者自 2年前开始无原因反复出现上腹胀满不适 ,便秘 ,大便每 3～ 4天一次 ,量少。无腹痛、发热、黄疸 ,无呕吐血便等。多处就诊 ,服中西药物未见好转。既往有胆囊切除术 ,阻塞性肺气肿病史。否认输血史及饮酒史。入院时查体 :T 3 6 4℃ , Male, 73 years old, constipation admitted to hospital for 2 years due to repeated abdominal distension. Patients from 2 years ago, no reason repeated repeated abdominal discomfort, constipation, stool every 3 to 4 days, less. No abdominal pain, fever, jaundice, no vomiting and bloody stools. Multiple visits, serving Chinese and Western medicine did not improve. Past history of cholecystectomy, obstructive emphysema. Denial of blood transfusion history and history of drinking. Admission examination: T 3 6 4 ℃,