Quiz: Remember the definition of mal de mer?
hemothorax he·mo·tho·rax (hē'mə-thôr'āks')
Blood in the pleural cavity.
collection of a bloody fluid in the pleural cavity, between the membrane lining the thoracic cage and the membrane covering the lung. Hemothorax may result from injury or surgery, especially when there has been damage to the larger blood vessels of the chest wall. Other disorders that cause hemothorax include pulmonary embolism and certain tumours. If hemothorax interferes with breathing, a tube is inserted through the chest wall into the pleural space to drain the blood. Continued bleeding through the tube necessitates surgical exploration.