Crow feet sign (round atelectasis)
Citation, DOI, disclosures and article data
Citation:
Venkatesh M, Hacking C, Bickle I, et al. Crow feet sign (round atelectasis). Reference article, Radiopaedia.org (Accessed on 26 Mar 2025) https://doi.org/10.53347/rID-31124
rID:
31124
Article created:
20 Sep 2014,
Manchikanti Venkatesh
Disclosures:
At the time the article was created Manchikanti Venkatesh had no recorded disclosures.
View Manchikanti Venkatesh's current disclosures
Last revised:
Disclosures:
At the time the article was last revised Craig Hacking had no recorded disclosures.
View Craig Hacking's current disclosures
Revisions:
9 times, by
9 contributors -
see full revision history and disclosures
Systems:
Sections:
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Synonyms:
- Crows feet bands
- Crow foot sign
- Crow's feet sign
Crow feet sign is a characteristic, but uncommon, feature seen in round atelectasis.
On CT, this is seen as linear bands radiating from a mass into adjacent lung tissue resembling the feet of a crow. This sign should not be confused with fibrotic changes occurring in the lung.
References
- 1.Lynch J, Shelmerdine S, Mahadevan V. MCQs in Clinical Radiology. JP MEDICAL PUBLISHERS. ISBN:1907816348. Read it at Google Books - Find it at Amazon
- 2.Andrey Yudin. Rounded Atelectasis, Comet-Tail Sign, and Crow’s Foot Sign. 45-45. doi:10.1007/978-3-319-04013-4_23
- 3.Gevenois PA, de Maertelaer V, Madani A et-al. Asbestosis, pleural plaques and diffuse pleural thickening: three distinct benign responses to asbestos exposure. Eur. Respir. J. 1998;11 (5): 1021-7. Eur. Respir. J. (abstract) - Pubmed citation
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