一、临床资料 例1,男,75岁,因上腹痛一周入院,伴食欲不振,呕吐一次,体重略减。查体皮肤及巩膜微黄,上腹剑突下扪及3 cm × 4cm包块,质中等,有压痛,边缘不清,不能移动。Hb 140 g/l,RBC 4.9×10~(12)/L,WBC 12×10~9/L,N 0.72,L 0.28。腹部平片见肠管充气、扩张、有多处阶梯状气液面,示空肠梗阻。术中见距回盲部60 cm处有顺行性肠套叠,形成5 cm×6 cm×5 cm肿块,有少量脓苔,近端小肠扩张,作肠切除吻合后愈。病检示回肠 First, clinical data Example 1, male, 75 years old, admitted to the hospital because of abdominal pain, with loss of appetite, vomiting once, weight loss. Examination of the skin and sclera yellowish, epigastric xiphoid lower jaw and 3 cm × 4cm mass, medium quality, tenderness, unclear edge, can not move. Hb 140 g/l, RBC 4.9×10 12/L, WBC 12×10 9/L, N 0.72, L 0.28. Abdominal flat film see intestine inflated, expanded, there are multiple gas-liquid steps, showing jejunal obstruction. During the operation, there was antegrade intussusception at a distance of 60 cm from the ileocecal region, forming a 5 cm×6 cm×5 cm mass, with a small amount of pus, and the proximal small intestine dilating. Illness shows ileum