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 06 Oct 2024) https://doi.org/10.53347/rID-2047
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2047
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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
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11 times, by
9 contributors -
see full revision history and disclosures
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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.
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References
- 1. Ouellette H. The signet ring sign. Radiology. 1999;212 (1): 67-8. doi:10.1148/radiology.212.1.r99jl2067 - Pubmed citation
- 2. Burgener FA, Kormano M, Pudas T. Differential Diagnosis in Conventional Radiology. Thieme. (2008) ISBN:1588902757. Read it at Google Books - Find it at Amazon
- 3. Jung DC, Kim SH, Jung SI et-al. Renal papillary necrosis: review and comparison of findings at multi-detector row CT and intravenous urography. Radiographics. 26 (6): 1827-36. doi:10.1148/rg.266065039 - Pubmed citation
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