患者男,60岁。上腹隐痛一个月,伴呕吐宿食,消瘦,无呕血、黑便。术前胃镜诊断:胃窦浸润型腺癌,幽门不全梗阻。行胃癌根治,术中发现距蔡氏韧带15cm空肠壁上隆起一淡黄色结节,无包膜,大小约2.0cm×1.5cm。在胃癌根治术基础上又行空肠部分切除吻合术。术后病理回报:胃小弯溃疡型腺癌,空肠异位胰腺组织。讨论异位胰腺可发生于任何脏器,发生率约为0.1%～0.3%,多于手术中偶然所见。多为单发,外观为淡黄色或淡红色分叶状结节,偶见多个,体积一般较小,直径多在0.5～3cm间。异位胰腺没有包膜,不能完整剥离。临床表现较复杂,根据 Male patient, 60 years old. Abdominal pain for a month, accompanied by vomiting, weight loss, no hematemesis, melena. Preoperative gastroscopy diagnosis: infiltration of gastric adenocarcinoma, pyloric obstruction. Gastric cancer radical surgery, intraoperative findings from the ligament of Chua 15cm uplift of the jejunum wall a light yellow nodules, no capsule, the size of about 2.0cm × 1.5cm. On the basis of radical gastrectomy jejunum partial resection and anastomosis. Postoperative pathological findings: gastric ulcer type adenocarcinoma, ectopic pancreatic tissue. Discussion Heterotopic pancreas can occur in any organ, the incidence of about 0.1% to 0.3%, more than seen by chance in surgery. Mostly single, the appearance of light yellow or pink lobulated nodules, occasionally more than one, the volume is generally smaller, the diameter of more than 0.5 ~ 3cm. Ectopic pancreas is not coated, can not be completely stripped. Clinical manifestations are more complicated, based on