• Definition

    Hemothorax is a collection of blood in the space between the chest wall and the lung (the pleural cavity).

    Causes, incidence, and risk factors

    The most common cause of hemothorax is chest trauma. It can also occur in patients who have:

    • A defect of blood clotting
    • Death of lung tissue (pulmonary infarction)
    • Lung or pleural cancer
    • Placement of a central venous catheter
    • Thoracic or heart surgery
    • Tuberculosis