Pseudopneumomediastinum is the false impression, usually on a chest x-ray, of pneumomediastinum. Correctly identifying pneumomediastinum is important, but making the diagnosis in error may lead to further unnecessary investigation and possible treatment.

Causes include:

Article information

rID: 43986
System: Chest
Section: Signs
Synonyms or Alternate Spellings:

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Cases and figures

  • Case 1: Mach effect
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