Swiss cheese sign (lungs)

The Swiss cheese sign has been used for the appearance on CT of fluid-containing pneumatoceles, that typically occur following pulmonary lacerations 1. They have also been described on CT appearances where there is pulmonary infection superimposed on emphysema 2.

The pneumatocoeles appear as 'holes' in the lung parenchyma and hence the description with respect to Swiss-style cheeses (e.g. Emmental), which contain multiple holes.

Other usage

It is sometimes used by pathologists to describe the gross pathological appearance in juvenile papillomatosis of the breast.

See also

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Article information

rID: 38761
System: Chest
Section: Signs
Synonyms or Alternate Spellings:
  • Swiss cheese appearance

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