Crow feet sign (round atelectasis)

Crow feet sign is a characteristic but uncommon feature seen in round atelectasis.

On CT, this is seen as linear bands radiating from mass into adjacent lung tissue which resembles the feet of the crow. This sign should not be confused with fibrotic changes occurring in the lung.

Inspired signs
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Article information

rID: 31124
System: Chest
Section: Signs
Tag: cases
Synonyms or Alternate Spellings:
  • Crows feet bands
  • Crow foot sign
  • Crow's feet sign

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