Delayed cardiac rupture due to blunt chest trauma.

A 7-year-old boy fell from a 2.5-m height and suffered contusion of the thorax with hematoma in the soft tissues of the lateral chest wall. The rib cage itself remained intact. After 3 days, there was only local pressure sensitivity of the left hemithorax. On day 8 after the trauma, the child, who up to then had seemed to be in good health, suddenly died during lessons at school. Autopsy revealed a full-thickness rupture of the left ventricle with resultant cardiac tamponade. The macroscopic and histopathologic findings are presented and discussed.