Swiss cheese sign

The Swiss cheese sign has been attributed to the appearances on CT of fluid containing pneumatoceles, that typically occur following pulmonary lacerations.1

The pneumatoceles 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.

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Article information

rID: 38761
System: Chest
Section: Signs
Tags: stub, cases, refs
Synonyms or Alternate Spellings:
  • Swiss cheese appearance

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