Signet ring sign (scaphoid)

Last revised by Arlene Campos on 11 Apr 2024

Citation, DOI, disclosures and article data

Citation:

Hacking C, Campos A, Knipe H, et al. Signet ring sign (scaphoid). Reference article, Radiopaedia.org (Accessed on 09 May 2024) https://doi.org/10.53347/rID-159962

DOI:

https://doi.org/10.53347/rID-159962

Permalink:

https://radiopaedia.org/articles/159962

rID:

159962

Article created:

10 Jan 2023, Craig Hacking ◉

Disclosures:

At the time the article was created Craig Hacking had the following disclosures:

Philips Australia, Paid speaker at Philips Spectral CT events (ongoing)

These were assessed during peer review and were determined to not be relevant to the changes that were made.

View Craig Hacking's current disclosures

Last revised:

11 Apr 2024, Arlene Campos ◉

Disclosures:

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

View Arlene Campos's current disclosures

Revisions:

5 times, by 5 contributors - see full revision history and disclosures

Systems:

Musculoskeletal

Sections:

Signs

Tags:

refs, cases, case2, snippet

Synonyms:

Cortical ring sign

The signet ring sign or cortical ring sign refers to the rounded cortex of the scaphoid tubercle on a AP or PA wrist radiograph due to rotatory subluxation from flexion of the scaphoid. It is seen in injuries of the scapholunate ligament (scapholunate dissociation) and the related perilunate and lunate dislocations but can be seen in normal wrist radiographs ^1,2.