title: [Analysis of clinical, endoscopic and pathological characteristics of gastric hyperplastic polyps].
abstract: OBJECTIVE
  To investigate the clinical, endoscopic and pathologic characteristics of gastric hyperplastic polyps.
  
  
  METHODS
  A total of 1 676 gastric hyperplastic polyps patients diagnosed by gastroscopy and pathology from January 2005 to October 2014 were enrolled and analyzed retrospectively.
  
  
  RESULTS
  Among them, 1 030 patients (61.46%) were female, 1 014 patients (60.50%) aged ≥ 60 years old, 1 093 patients (65.21%) polyps distributed in the fundus and body of stomach. And the concurrent conditions included dysplasia in polyps tissue (n = 89, 5.31%), intestinal metaplasia (n = 94, 5.61%), focal carcinoma (n = 5, 0.30%). In the background gastric mucosa included Helicobacter pylori gastritis (n = 368, 21.96%), autoimmune gastritis (n = 238, 14.20%), intestinal metaplasia (n = 379, 22.61%), dysplasia (n = 110, 6.56%), adenocarcinoma (n = 13, 0.78%), carcinoid tumor (n = 3, 0.18%).
  
  
  CONCLUSIONS
  Hyperplastic polyps are mainly distributed in the proximal stomach, and malignant transformation may be detected in hyperplastic polyps. Whereas, both precancerous lesions and malignant transformation are detected in background gastric mucosa. Therefore, the endoscopist should always pay attention to background gastric mucosa.
authors.affiliation: Department of Gastroenterology, Peking University Third Hospital, Beijing 100191, China.
authors.forename: Lingmei
authors.initials: L
authors.lastname: Meng
authors.affiliation: Department of Gastroenterology, Peking University Third Hospital, Beijing 100191, China; Email: menglingmei1977@163.com.
authors.forename: Liya
authors.initials: L
authors.lastname: Zhou
authors.affiliation: Department of Gastroenterology, Peking University Third Hospital, Beijing 100191, China.
authors.forename: Yuan
authors.initials: Y
authors.lastname: Li
authors.affiliation: Department of Gastroenterology, Peking University Third Hospital, Beijing 100191, China.
authors.forename: Hejun
authors.initials: H
authors.lastname: Zhang
authors.affiliation: Department of Gastroenterology, Peking University Third Hospital, Beijing 100191, China.
authors.forename: Zhu
authors.initials: Z
authors.lastname: Jin
authors.affiliation: Department of Gastroenterology, Peking University Third Hospital, Beijing 100191, China.
authors.forename: Rongli
authors.initials: R
authors.lastname: Cui
mesh_terms: D000230:Adenocarcinoma; D018256:Adenomatous Polyps; D002276:Carcinoid Tumor; D002471:Cell Transformation, Neoplastic; D005260:Female; D005753:Gastric Mucosa; D005756:Gastritis; D005773:Gastroscopy; D016481:Helicobacter Infections; D016480:Helicobacter pylori; D006801:Humans; D006965:Hyperplasia; D008297:Male; D008679:Metaplasia; D012189:Retrospective Studies; D013274:Stomach Neoplasms