[Unusual late disclosure of left congenital diaphragmatic hernia]

A posterolateral hernia through Bochdalek foramina was discovered in a 27 months old child under unusual circumstances. During lifting an heavy weight, migration occurred of the abdominal content through the foramina into the left thorax. The size of the pleuroperitoneal communication was well demonstrated by peritoneography. Possible rupture of a diaphragmatic relaxation was eliminated on findings at surgery. Reconstructive surgery led to an uneventful recovery which is the rule in this type of late-discovered hernia.