Hyperattenuating ring sign (epiploic appendagitis)

Last revised by Henry Knipe ◉ on 23 Nov 2024

Citation, DOI, disclosures and article data

Citation:

Biswas A, Knipe H, Thibodeau R, et al. Hyperattenuating ring sign (epiploic appendagitis). Reference article, Radiopaedia.org (Accessed on 21 Mar 2025) https://doi.org/10.53347/rID-28789

DOI:

https://doi.org/10.53347/rID-28789

Permalink:

https://radiopaedia.org/articles/28789?embed_domain=external.radpair.com%252525252527%25252525255B0%25252525255D

rID:

28789

Article created:

20 Apr 2014, Asthik Biswas

Disclosures:

At the time the article was created Asthik Biswas had no recorded disclosures.

View Asthik Biswas's current disclosures

Last revised:

23 Nov 2024, Henry Knipe ◉

Disclosures:

At the time the article was last revised Henry Knipe had the following disclosures:

Micro-X Ltd, Shareholder (past)

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

View Henry Knipe's current disclosures

Revisions:

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

Systems:

Gastrointestinal

Sections:

Signs

Synonyms:

Hyperattenuating ring sign in epiploic appendagitis
Hyperattenuating ring sign - epiploic appendagitis
Hyperdense ring sing (epiploic appendagitis)

The hyperattenuating ring sign is a sign that has been described with epiploic appendagitis and intraperitoneal focal fat infarction. It refers to a hyperattenuating ring of visceral peritoneum covering an epiploic appendage. In the setting of epiploic appendagitis, the ring would surround a thrombosed vascular pedicle with a resultant associated central hyperdense spot sign ^1-3.