Chapter 17 Recognizing the Imaging Findings of Trauma
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TABLE 17-1 OTHER MANIFESTATIONS OF TRAUMA
Injury | Discussed in |
---|---|
Pleural effusion/hemothorax | Chapter 6 |
Aspiration | Chapter 7 |
Pneumothorax, pneumomediastinum and pneumopericardium | Chapter 8 |
Fractures and dislocations | Chapter 22 |
Head trauma | Chapter 25 |
Chest Trauma
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Rib Fractures
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Pulmonary Contusions
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• The history of trauma is of paramount importance as contusions present as airspace disease that is indistinguishable from other airspace diseases like pneumonia or aspiration.
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Pulmonary Lacerations (Hematoma or Traumatic Pneumatocele)
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• Their appearance will depend on whether they contain blood and, if so, how much blood fills the laceration.
• If they are partially filled with blood and partially filled with air, they may contain a visible air-fluid level or demonstrate a crescent sign as the blood begins to form a clot and pull away from the wall of the laceration.
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Aortic Trauma
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• Findings seen on conventional radiographs of the chest are the same as those discussed under Aortic Dissection in Chapter 9. A completely normal chest radiograph has a relatively high negative predictive value for aortic injury, but an abnormal chest x-ray has a relatively low positive predictive value
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