Rings and arcs calcification

Last revised by Arlene Campos on 11 Jul 2024

Citation, DOI, disclosures and article data

Citation:

Gaillard F, Campos A, Lee S, et al. Rings and arcs calcification. Reference article, Radiopaedia.org (Accessed on 01 Aug 2024) https://doi.org/10.53347/rID-6248

DOI:

https://doi.org/10.53347/rID-6248

Permalink:

https://radiopaedia.org/articles/6248

rID:

6248

Article created:

12 May 2009, Frank Gaillard ◉ ◈

Disclosures:

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

View Frank Gaillard's current disclosures

Last revised:

11 Jul 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:

12 times, by 10 contributors - see full revision history and disclosures

Systems:

Musculoskeletal

Sections:

Signs

Tags:

refs

Synonyms:

Ring and arc calcification
Chondroid calcification
Rings-and-arcs calcification
Ring-and-arc calcification

Rings and arcs calcification is characteristic of chondroid lesions, such as enchondromas and chondrosarcomas. It is due to the endochondral mineralization of multiple hyaline cartilage nodules and is similar to popcorn calcification, which has a rings and arcs on the background of more amorphous calcification.

Generally, well-formed rings and arcs are seen in lower-grade tumors (see chondrosarcoma grading).

Although considered so by some, the appearance is not pathognomonic for chondral calcification. Rarely, rings and arcs calcification have also been seen with osteoblastomas, as well as CPPD. Nevertheless, the presence of rings, arcs and/or popcorn calcification is highly specific for a chondroid lesion.