Pulmonary Contusion: This is a common injury following blunt chest trauma, resulting from the lung parenchyma being bruised due to the force of the impact. It can lead to respiratory distress and is often seen in conjunction with other chest injuries.

Rib Fractures: These are very common in blunt chest trauma and can cause significant pain and respiratory distress, especially if multiple ribs are fractured.
Pneumothorax: Air in the pleural space can occur due to lung or chest wall injury, leading to a collapsed lung. It's a critical condition that requires prompt recognition and treatment.
Hemothorax: Blood in the pleural space can result from vascular or lung injury, leading to hypovolemic shock and respiratory compromise.
Myocardial Contusion: A bruise of the heart muscle can occur from blunt trauma, potentially leading to arrhythmias or decreased cardiac function.

Aortic Dissection or Rupture: Although less common, a tear in the aorta's wall can be catastrophic and is often fatal if not promptly diagnosed and treated.
Tracheobronchial Injury: Injury to the airways can lead to severe respiratory distress and is critical to identify early for appropriate management.
Esophageal Rupture: A tear in the esophagus can lead to mediastinitis and sepsis if not recognized and treated promptly.
Diaphragmatic Rupture: A tear in the diaphragm can lead to herniation of abdominal contents into the chest, causing respiratory and gastrointestinal complications.

Chylothorax: A leak of lymphatic fluid into the pleural space, which can occur from trauma to the thoracic duct.
Pulmonary Laceration: A tear in the lung parenchyma, which can be isolated or associated with other injuries.
Bronchopleural Fistula: An abnormal connection between the bronchial tree and the pleural space, which can complicate pneumothorax management.
Pericardial Effusion or Tamponade: Fluid accumulation in the pericardial space can lead to cardiac compression and decreased cardiac output, a condition that requires urgent intervention.