Extrapleural fat sign

The extrapleural fat sign is an imaging feature which can be seen on CT under certain circumstances. It occurs from the inward displacement of extrapleural fat by an extrapleural fluid collection, extrapleural hematoma or extrapleural mass. The presence of the extrapleural fat sign is indicative of an extrapleural location of the fluid collection or mass in question.

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Article information

rID: 36647
System: Chest
Section: Signs
Synonyms or Alternate Spellings:
  • Extra-pleural fat sign

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Cases and figures

  • Case 1: with intrapleural and extrapleural hematoma
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  • Case 2: due to an extrapleural hematoma
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