{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,17]],"date-time":"2026-02-17T07:15:11Z","timestamp":1771312511099,"version":"3.50.1"},"reference-count":11,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2026,2,17]],"date-time":"2026-02-17T00:00:00Z","timestamp":1771286400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Pediatr."],"abstract":"\n Background<\/jats:title>\n Ingestion of a metallic foreign body is common among young children. Although most objects pass spontaneously, some require endoscopic removal. Brass and similar metals can undergo acid-induced dezincification, leading to internal weakening even if the surface appears unchanged. This report describes a rare case of brass pendant ingestion affected by such corrosion.<\/jats:p>\n <\/jats:sec>\n \n Case presentation<\/jats:title>\n A 4-year-old boy ingested a brass pendant that remained in his stomach for 72\u2005h, prompting endoscopic retrieval. Although there was no visible corrosion, the pendant fractured at a narrow segment when traction was applied at a physiological esophageal narrowing site. The remaining portion was safely removed after re-grasping the thickest, structurally strongest region.<\/jats:p>\n <\/jats:sec>\n \n Conclusion<\/jats:title>\n Despite having a normal appearance, metallic foreign bodies may weaken internally after 48\u201372\u2005h (2\u20133 days) of gastric exposure. Hence, endoscopists should anticipate hidden corrosion and grasp the thickest, most reinforced area during removal while considering mechanical stress at esophageal narrowing sites to ensure safe retrieval.<\/jats:p>\n <\/jats:sec>","DOI":"10.3389\/fped.2026.1765313","type":"journal-article","created":{"date-parts":[[2026,2,17]],"date-time":"2026-02-17T06:34:28Z","timestamp":1771310068000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":0,"title":["Case Report: Occult gastric corrosion of a brass pendant during endoscopic retrieval in a child"],"prefix":"10.3389","volume":"14","author":[{"given":"Genki","family":"Ehara","sequence":"first","affiliation":[{"name":"Department of Pediatrics, Faculty of Medicine, Saga University","place":["Saga, Japan"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Miri","family":"Nomura","sequence":"additional","affiliation":[{"name":"Department of Pediatrics, Faculty of Medicine, Saga University","place":["Saga, Japan"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yukari","family":"Mizoguchi","sequence":"additional","affiliation":[{"name":"Department of Pediatrics, Faculty of Medicine, Saga University","place":["Saga, Japan"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ryo","family":"Kimura","sequence":"additional","affiliation":[{"name":"Division of Gastroenterology, Department of Internal Medicine, Faculty of Medicine, Saga University","place":["Saga, Japan"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Daisuke","family":"Yamaguchi","sequence":"additional","affiliation":[{"name":"Division of Gastroenterology, Department of Internal Medicine, Faculty of Medicine, Saga University","place":["Saga, Japan"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Toshihiko","family":"Kakiuchi","sequence":"additional","affiliation":[{"name":"Department of Pediatrics, Faculty of Medicine, Saga University","place":["Saga, Japan"]}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1965","published-online":{"date-parts":[[2026,2,17]]},"reference":[{"key":"B1","doi-asserted-by":"publisher","first-page":"468","DOI":"10.1007\/s004310100788","article-title":"Management of ingested foreign bodies in childhood and review of the literature","volume":"160","author":"Arana","year":"2001","journal-title":"Eur J Pediatr"},{"key":"B2","doi-asserted-by":"publisher","first-page":"1040","DOI":"10.62438\/tunismed.v102i12.4857","article-title":"Foreign body ingestion in children: clinical features and complications","volume":"102","author":"Trabelsi","year":"2024","journal-title":"Tunis Med"},{"key":"B3","doi-asserted-by":"publisher","first-page":"562","DOI":"10.1097\/mpg.0000000000000729","article-title":"Management of ingested foreign bodies in children: a clinical report of the NASPGHAN endoscopy committee","volume":"60","author":"Kramer","year":"2015","journal-title":"J Pediatr Gastroenterol Nutr"},{"key":"B4","doi-asserted-by":"publisher","first-page":"133","DOI":"10.1097\/mpg.0000000000001408","article-title":"Paediatric gastrointestinal endoscopy: European society for paediatric gastroenterology hepatology and nutrition and European society of gastrointestinal endoscopy guidelines","volume":"64","author":"Thomson","year":"2017","journal-title":"J Pediatr Gastroenterol Nutr"},{"key":"B5","doi-asserted-by":"publisher","first-page":"83","DOI":"10.1055\/s-0042-111002","article-title":"Pediatric gastrointestinal endoscopy: European society of gastrointestinal endoscopy (ESGE) and European society for paediatric gastroenterology hepatology and nutrition (ESPGHAN) guideline executive summary","volume":"49","author":"Tringali","year":"2017","journal-title":"Endoscopy"},{"key":"B6","doi-asserted-by":"publisher","first-page":"2495","DOI":"10.1001\/jama.1983.03330420041031","article-title":"Button battery ingestions. 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