{"title":"Comparison of clinicopathological features of gastric carcinoma in autoimmune gastritis with and without Helicobacter pylori infection.","authors":"Ayaka Takasu, Toshiaki Hirasawa, Yuka Higashi, Kaoru Nakano, Souya Nunobe, Takuji Gotoda, Hiroshi Kawachi","doi":"10.1007/s10120-025-01649-z","DOIUrl":null,"url":null,"abstract":"<p><strong>Background: </strong>Chronic atrophic gastritis, represented by Helicobacter pylori (H. pylori) or autoimmune gastritis (AIG), has been recognized as a risk factor for gastric carcinoma (GC). Differences in the clinicopathological features of GC with AIG (GC-AIG) based on H. pylori infection status remain unclear.</p><p><strong>Methods: </strong>This retrospective analysis included 65 cases of GC-AIG in which endoscopic resection or gastrectomy was performed at a single center between 2008 and 2024. The cases were categorized into Group A (H. pylori-naïve GC-AIG) or Group B (H. pylori-infected GC-AIG), and the clinical and pathological data were compared between the groups.</p><p><strong>Results: </strong>Group A included 18 cases with 25 lesions and Group B included 47 cases with 72 lesions. The median age [interquartile range] was significantly younger in Group A (70 [63-74] years) than in Group B (75 [62-79] years, p = 0.045). Tumors in Group A were more frequently located in the upper and middle stomach, whereas those in Group B were predominantly located in the lower stomach (p = 0.006). Group A had a significantly higher proportion of pure undifferentiated-type adenocarcinoma (Laurén's diffuse type) than Group B (28.0% versus 8.3%, p = 0.027).</p><p><strong>Conclusions: </strong>H. pylori-naïve GC-AIG is characterized by younger age, a higher prevalence of pure undifferentiated-type adenocarcinoma, and tumors predominantly located in the upper and middle stomach.</p>","PeriodicalId":12684,"journal":{"name":"Gastric Cancer","volume":" ","pages":""},"PeriodicalIF":5.1000,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Gastric Cancer","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1007/s10120-025-01649-z","RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"GASTROENTEROLOGY & HEPATOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Background: Chronic atrophic gastritis, represented by Helicobacter pylori (H. pylori) or autoimmune gastritis (AIG), has been recognized as a risk factor for gastric carcinoma (GC). Differences in the clinicopathological features of GC with AIG (GC-AIG) based on H. pylori infection status remain unclear.
Methods: This retrospective analysis included 65 cases of GC-AIG in which endoscopic resection or gastrectomy was performed at a single center between 2008 and 2024. The cases were categorized into Group A (H. pylori-naïve GC-AIG) or Group B (H. pylori-infected GC-AIG), and the clinical and pathological data were compared between the groups.
Results: Group A included 18 cases with 25 lesions and Group B included 47 cases with 72 lesions. The median age [interquartile range] was significantly younger in Group A (70 [63-74] years) than in Group B (75 [62-79] years, p = 0.045). Tumors in Group A were more frequently located in the upper and middle stomach, whereas those in Group B were predominantly located in the lower stomach (p = 0.006). Group A had a significantly higher proportion of pure undifferentiated-type adenocarcinoma (Laurén's diffuse type) than Group B (28.0% versus 8.3%, p = 0.027).
Conclusions: H. pylori-naïve GC-AIG is characterized by younger age, a higher prevalence of pure undifferentiated-type adenocarcinoma, and tumors predominantly located in the upper and middle stomach.
期刊介绍:
Gastric Cancer is an esteemed global forum that focuses on various aspects of gastric cancer research, treatment, and biology worldwide.
The journal promotes a diverse range of content, including original articles, case reports, short communications, and technical notes. It also welcomes Letters to the Editor discussing published articles or sharing viewpoints on gastric cancer topics.
Review articles are predominantly sought after by the Editor, ensuring comprehensive coverage of the field.
With a dedicated and knowledgeable editorial team, the journal is committed to providing exceptional support and ensuring high levels of author satisfaction. In fact, over 90% of published authors have expressed their intent to publish again in our esteemed journal.