十二指肠球部异位胃粘膜

HETEROPIC GASTRIC MUCOSA OF DUODENAL BULB

作者报道了四例十二指肠球部异位胃粘膜。内镜下可见十二指肠球顶部及前壁为多见的多发性、滤泡样、铺路石样,白色、光滑的隆起。约数毫米大小,柔软,不伴有溃疡及糜烂。病理可见胃型上皮,有生长好,排列齐的腺体、含主细胞及壁细胞。钡餐可见球部多发性,小的充盈缺损。

I leterotopic gastric mucosa (HGM) can be found in any positions along the entire al imentary tract and occasionally in some other systems. Up to now HGM has not been reported in China. Recntly, We found four cases of heterotopic gastric mucosa of duodenal bulb. The lesions of HGM have a characteristic endoscopic apperence, that is muitiple small mucosa nodules which project into the lumen of duodenal bulb, usually with a few mm in diameter. They are more commonly seen in the anterior wall and tip of the bulb just like pallor follicles, with soft sensation upon touching. No peptic ulcer were identified in the stomach and duodenal bulb. Biopsies were taken from the nodules. Histological examination revealed which covered with gastric epithelium and lamina propria contained gastric fundic gland, parietal cells and chilf cellf cells were demonstrated. An interesting problem is that the patient of HGM has no evidence of associated peptic ulcers. The machnism isn' t resolved recently.