十二指肠憩室是消化道常见疾病，由Chomel在1710年首先描述，在人群中的发生率约为2％～22％，仅次于结肠憩室，由于无特殊临床症状而常被合并症所掩盖，故临床表现呈多样化。文献报道[1]尸检发现率为6．8％～14．3％，常规胃肠造影的发现率为2．0％～58％。Kimura分析[2]362例 Duodenal diverticulum is a common disease of the digestive tract. It was first described by Choller in 1710. The incidence in the population is about 2% to 22%, second only to the colonic diverticulum. It is often referred to as a complication due to no specific clinical symptoms. Cover up, so the clinical manifestations are diversified. Reported in the literature [1] autopsy detection rate of 6.8% to 14.3%, the discovery rate of conventional gastrointestinal angiography was 2.0% to 58%. Kimura analysis [2] 362 cases