目的 探讨腹部异位胰腺(EP)的 CT征象。方法 搜集经病理证实的7例腹 部EP，对其CT平扫及三期增强表现作回 顾性分析。结果 7例EP均为单发，其中 4例于胃窦小弯侧，1例于胃窦大弯侧， 1例于十二指肠降部，1例空肠上段系膜 区。5例椭圆形，边缘光整2例形态不规 则，边缘轻度分叶状、小结节状。6例胃 肠道EP中，有1例周围出现脂肪密度。平 扫及增强 CT 6例病灶平扫密度均匀，增 强各期与主胰腺强化一致，1例合并胰腺 炎平扫密度及强化程度较主胰腺减低。 结论 CT平扫和增强可显示腹部异位胰腺 的位置、大小、形态、密度和强化形式 的特点，对腹部EP的诊断有重要价值。

Objective To explore the CT features of ectopic pancreas (EP) in abdomen. Methods Non-enhanced CT and enhanced CT of 7 patients with ectopic pancreas in abdomen confirmed by pathology were retrospectively analyzed and summarized. Results All patiens had a single lesion; five occurred in the stomach, including the gastric antrum lesser curvature (n=4) and greater curvature (n=1), one were in the descending duodenum ,and one occurred in the mesentery. Five cases appeared ovoid shape, and two cases lobulated shape, nodular. There was fat tissue arround one lesion in the gastric antrum. Six cases showed density and enhancement similar to those of normal pancreas. One case with acute pancreatitis showed density and enhancement significantly lower than that of the normal pancrea. Conclusion Non-enhanced CT and enhanced CT provide useful information about the location, size, shape, density, enhancement patter of ectopic pancreas in abdomen, and were important in the diagnosis of EP.