Hemopneumothorax, or haemopneumothorax is the condition of having air in the chest cavity (pneumothorax) and blood in the chest cavity (hemothorax). A hemothorax, pneumothorax, or the combination of both can occur due to an injury to the lung or chest


Reference
  1.  Grainger & Allison's Diagnostic Radiology (6 ed.). Elsevier. 2015. pp. 184–208