消化道异位胰腺CT表现(附6例报告及文献复习)

CT Features of Gastrointestinal Tract Heterotopic Pancreas:A Report of 6 Cases and Literature Review

目的分析消化道异位胰腺的CT特征。方法回顾性分析经病理证实的6例消化道异位胰腺的CT表现,6例均行CT增强扫描,观察其CT表现特征。结果 6例异位胰腺均为单发病灶,其中发生在胃部2例,十二指肠2例,小肠2例(均位于空肠)。CT平扫病灶多呈圆形或卵圆形,密度多均匀,边界清楚,与胃肠道壁呈广基底连接,向腔内生长者居多,2例可见小囊变区。CT增强扫描,6例均明显强化,强化方式类似于正常胰腺,其中4例均匀强化,2例可见小囊变区未强化。结论消化道异位胰腺的CT表现具有一定特征性,对本病正确诊断有帮助。

Objective To analyze CT features of heterotopic pancreas in the gastrointestinal tract. Methods CT find- ings of 6 cases of heterotopic pancreas in the gastrointestinal tract confirmed by pathology were reviewed. The 6 patients un- derwent plain and enhanced CT scan. CT findings were compared with the pathologic findings. Results Two heterotopic pancreas located in the stomach, 2 in the duodenum and 2 in the jejunum intestine. Most lesions showed homogeneous den- sity on plain scans, 2 lesions with cystic changes, all the lesions were round or oval in shape with broad base against the gastrointestinal wall. All the heterotopic pancreas showed strong enhancement with the similar intensity to the normal pan- creas. 4 cases were homogeneously enhanced and the other 2 cases were heterogeneously enhanced. Conclusion CT fea- tures of gastrointestinal tract heterotopic pancreas showed some characteristics, CT examination was helpful in making a cor- rect diagnosis.