oesophageal stenosismediastinitisfistula formationperforationButton batteriesFrench paediatric centreArch Dis Childarchdischild-2025-328576Coins usually pass through the digestive tract without intervention. Magnets
…e, nearly 40% developed complications, including mediastinitis, oesophageal stenosis, perforation, and fistula formation ( Arch Dis Child doi:10.113…