IM Radiology Case - Pneumomediastinum Flashcards

1
Q

Possible etiologies of pneumomediastinum?

A

Trauma: tracheal rupture, esophageal rupture, pulmonary barotrauma (scuba diver)
Spontaneous: asthma or conditions leading to alveolar rupture, crack cocaine
Pneumoperitoneum tracking up mediastinum

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2
Q

CXR findings - pneumomediastinum?

A

Radiolucent streaks of free air tracking along mediastinal structures
Air in the retrosternal space

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