injuries poisoning
Hemothorax
Introduction
Hemothorax is accumulation of blood in the pleural space. (See also Overview of Thoracic Trauma .) The usual cause of hemothorax is laceration of the lung, intercostal vessel, or an internal mammary artery. It can result from penetrating or blunt trauma. Hemothorax is often accompanied by Pneumothorax (hemopneumothorax). 1000 mL of blood. Shock is common. Patients with large hemorrhage volume are often dyspneic and have decreased breath sounds and dullness to percussion (often difficult to appreciate during initial evaluation of patients with multiple injuries). Findings may be unremarkable in patients with smaller hemothoraces. 