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Signet ring sign (bronchiectasis)

Last revised by Mateusz Wilczek on 9 Nov 2023

Citation, DOI, disclosures and article data

Citation:

Gaillard F, Wilczek M, Hacking C, et al. Signet ring sign (bronchiectasis). Reference article, Radiopaedia.org (Accessed on 20 May 2024) https://doi.org/10.53347/rID-2047

DOI:

https://doi.org/10.53347/rID-2047

Permalink:

https://radiopaedia.org/articles/2047

rID:

2047

Article created:

2 May 2008, Frank Gaillard ◉ ◈

Disclosures:

At the time the article was created Frank Gaillard had no recorded disclosures.

View Frank Gaillard's current disclosures

Last revised:

9 Nov 2023, Mateusz Wilczek

Disclosures:

At the time the article was last revised Mateusz Wilczek had no financial relationships to ineligible companies to disclose.

View Mateusz Wilczek's current disclosures

Revisions:

11 times, by 9 contributors - see full revision history and disclosures

Systems:

Chest

Sections:

Signs

Synonyms:

Signet ring sign - general

The signet ring sign is seen in bronchiectasis when the dilated bronchus and accompanying pulmonary artery branch are seen in cross-section. The bronchus and artery should be the same size, whereas in bronchiectasis, the bronchus is markedly dilated.

The signet ring sign has been also described in other unrelated pathologies.