ArticleFrontiers in pediatrics2026
Case Report: Occult gastric corrosion of a brass pendant during endoscopic retrieval in a child.
Article in Frontiers in pediatrics, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Background: 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. Case presentation: A 4-year-old boy ingested a brass pendant that remained in his stomach for 72 h, 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. Conclusion: Despite having a normal appearance, metallic foreign bodies may weaken internally after 48-72 h (2-3 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.
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