Smithuis R H, Vos C G
Department of Radiology, St. Elisabeth's of Groote Gasthuis, the Netherlands.
AJR Am J Roentgenol. 1989 Jan;152(1):59-61. doi: 10.2214/ajr.152.1.59.
Heterotopic gastric mucosa in the duodenal bulb causes a characteristic radiologic abnormality consisting of multiple small, well-defined nodules in the mucosa. This finding was identified in 92 (5%) of 1873 consecutive standard biphasic barium examinations of the upper gastrointestinal tract. Of these 92, only one patient (1%) had an associated duodenal ulcer as compared with the other 1781 patients without heterotopic gastric mucosa of whom 225 (13%) had duodenal ulcers or scars (p = .002). No gastric ulcers or ulcer scars were identified in the patients with heterotopic gastric mucosa, whereas ulcers or scars were identified in 88 patients (5%) without heterotopic gastric mucosa (p = .05). These data raise the possibility that heterotopic gastric mucosa protects against peptic ulceration.
十二指肠球部的异位胃黏膜会导致一种特征性的放射学异常，表现为黏膜内多个边界清晰的小结节。在连续1873例上消化道标准双期钡剂检查中，有92例（5%）发现了这一表现。在这92例中，仅有1例患者（1%）伴有十二指肠溃疡，而在另外1781例无异位胃黏膜的患者中，有225例（13%）患有十二指肠溃疡或瘢痕（p = 0.002）。异位胃黏膜患者未发现胃溃疡或溃疡瘢痕，而在88例（5%）无异位胃黏膜的患者中发现了溃疡或瘢痕（p = 0.05）。这些数据提示异位胃黏膜可能具有预防消化性溃疡的作用。
