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1. Pulmonary contusion

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Figure 6-1

Pulmonary contusion.

This 10-year-old boy was injured by a 20-foot fall. There is a patchy area of consolidation in the left lower lobe.

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2. Pulmonary contusion

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Figure 6-2

Pulmonary contusion.

An axial CT image of a 5-year-old child who sustained blunt chest trauma during a motor vehicle crash shows a triangular-shaped peripheral focus of homogeneous consolidation in the left lower lobe.

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3. Intraparenchymal lung hematoma

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Figure 6-3

Intraparenchymal lung hematoma.

CT of a child suffering a penetrating pellet gun injury shows a homogeneous hematoma along the tract of the pellet. Fainter airspace opacification adjacent to the hematoma represents contused lung. There is a small amount of blood and air in the pleural space.

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4. Traumatic pneumatocele

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Figure 6-4

Traumatic pneumatocele.

There is an oval air collection (arrow) within a homogeneous pulmonary contusion. A trace of pleural fluid is present adjacent to the contusion.

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5. Tension hemothorax

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Figure 6-5

Tension hemothorax.

An anteroposterior radiograph of a 17-year-old gunshot-injury victim demonstrates a large, left pleural fluid collection and rightward mediastinal shift. The left lung is collapsed. There is an anterior pneumothorax.

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6. Airway foreign body

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Figure 6-6

Airway foreign body.

An anteroposterior chest radiograph shows an aspirated bracelet in the distal trachea and proximal bronchi. Because the airway obstruction is bilateral, there is symmetric lung inflation. Minimal atelectasis is present in the left lower lobe.

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7. Left main bronchus foreign body

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Figure 6-7

Left main bronchus foreign body.

A. A standard frontal chest radiograph obtained during inspiration is normal. B. The expiration view shows marked air trapping on the left, rightward mediastinal shift, and normal emptying of the right lung.

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8. Right main bronchus foreign body

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Figure 6-8

Right main bronchus foreign body.

A. The inspiration chest radiograph is normal. B. There is right lung air trapping on the expiration view.

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9. Bronchial foreign body

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Figure 6-9

Bronchial foreign body.

A. A chest radiograph of an 18-month-old child with cough and wheezing demonstrates atelectasis ...

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