CTICasesPneumomediastinum (Macklin Phenomenon)
Imaging findings
Pneumomediastinum without fluid, significant inflammation, or pleural effusions.
Key takeaways
In the absence of mediastinal fluid or clinical signs of sepsis, pneumomediastinum following vomiting is more likely to be alveolar rupture (Macklin phenomenon) than esophageal rupture (Boerhaave syndrome).
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