十二指肠肿瘤发病率占消化道肿瘤的0.05%-0.09%,占小肠肿瘤40%。十二指肠肿瘤一般恶性多见,良性较少。随着医疗卫生事业的发展,以及检查仪器设备的更新提高,十二指肠肿瘤以及乳头部肿瘤的检出率明显提高,这都取决于检查方法的合理筛选和多元化方式的检查。早期检出确诊,早期治疗。检查方法:十二指肠肿瘤的检查方法较多。常规钡剂造影及低张双重造影、CT、血管造影、ERCP、内镜超声和管内超声等等,不同的检查方法,能够得到不同的效果。不同的肿瘤具有不同的影像表现。 X线钡剂造影或低张双重造影能够显示十二指肠肿瘤的充盈缺损范围、管腔狭窄情况,以及龛影的大小、粘膜皱襞改变和钡剂通过表现,并能观察 The incidence of duodenal tumors accounted for 0.05% -0.09% of gastrointestinal tumors, accounting for 40% of intestinal tumors. Duodenal tumors are more common malignant, less benign. With the development of medical and health care, as well as the inspection equipment updated, the detection rate of duodenal tumors and papillary tumors significantly increased, depending on the screening method of screening and diversified examination. Early detection confirmed, early treatment. Inspection methods: Duodenal tumor examination more. Conventional barium contrast and low contrast double contrast, CT, angiography, ERCP, endoscopic ultrasound and intravascular ultrasound, etc., different examination methods, can get different results. Different tumors have different imaging performance. X-ray barium contrast imaging or low-contrast double imaging can show duodenal tumor filling defect range, lumen stenosis, as well as the size of niche, mucosal folds change and barium through performance, and can be observed