Delayed hemothorax after blunt trauma without rib fractures.

Delayed hemothorax after blunt trauma is a rare, significantly morbid entity described in the current literature associated with displaced rib fractures. This report describes a case of delayed hemothorax after blunt trauma without rib fracture. The patient presented to a routine clinic appointment 72 hours after injuring himself while snowboarding. Chest radiographs at initial visit were negative for significant pathology. Eight hours later, the patient presented again with worsening chest pain and dyspnea. Repeat radiographs revealed a large right-sided hemothorax. The patient was treated with tube thoracostomy and remained an inpatient for 6 days. This case is unique because, unlike previously reported delayed hemothorax after blunt trauma, this patient had no evidence of rib fractures.