Background Cardiac injury following blunt chest trauma, while rare, 1,2 may be life threatening if not detected expeditiously. It is commonly associated with obvious external signs of thoracic injury, with the majority of complications being described within 48 h of the event. 1,2 We report two pediatric cases illustrating cardiac injury without external signs of thoracic trauma, one of the cases with the cardiac complication presenting temporally remote to the traumatic event.