Esophageal erosion by a PDA occluder device following MAPC closure in tetralogy of Fallot

Tetralogy of Fallot (TOF) is the commonest cyanotic congenital heart disease encountered in paediatrics. Major aortopulmonary collaterals (MAPCAs) often complicate TOF when surgical correction is delayed, and a transcatheter closure is commonly done prior to definitive surgery. Embolization of occluding devices is a known complication that typically occurs in the vessels or in cardiac chambers. We report a young boy who presented with 1-month dysphagia post-transcatheter closure of a large MAPCAs. Barium revealed a filling defect confirmed by endoscopy as an impacted occluding device in the oesophagus. It was surgically removed, and the boy was discharged well. This case highlights a rare but highly significant unreported complication.