Journal of Capital Medical University ›› 2018, Vol. 39 ›› Issue (5): 721-725.doi: 10.3969/j.issn.1006-7795.2018.05.018

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Endoscopic and clinical characteristics of heterotopic gastric mucosa in duodenum

Meng Ying, Zhou Yanhua, Li Peng   

  1. Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
  • Received:2017-12-10 Online:2018-09-21 Published:2018-10-20

Abstract: Objective To analyze 65 cases of heterotopic gastric mucosa (HGM) in duodenum and investigated the endoscopic and clinical characteristics of HGM in duodenum. Methods Clinical and endoscopic data about 65 patients with pathology-confirmed HGM in duodenum admitted to our hospital from July 2015 to August 2016 were retrospectively analyzed. Results HGM of duodenum was mainly located on the anterior wall of duodenal bulb. The morphology was mainly divided into 3 types:the single or multiple polypoid hyperplasia type in 47 patients (72.3%), clustered nodule type in 11 patients (16.9%), flat elevated type in 6 patients (9.2%). One patient (1.5%) had congestive erythematous lesion, which like duodenitis. Polypoid hyperplasia type was often misdiagnosed as duodenal polyp, while flat elevated type was difficult to be distinguished from tumor and submucosal tumor in duodenum. And it is meaningful to distinguish the atypical HGM via using endoscopic ultrasound (EUS) and magnifying endoscopy with narrow-band imaging (M-NBI). Endoscopic polypectomy is still the main method of clinical treatment in HGM. Conclusion There are many kinds of endoscopic manifestations of duodenal HGM. Combined with histological examination and endoscopic findings, misdiagnosis should be reduced. Magnifying endoscopy with narrow-band imaging may be the new and useful method in differentiating HGM in duodenum.

Key words: duodenal bulb, heterotopic gastric mucosa, endoscopy, magnifying endoscopy

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