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Accessory ossicles

Last revised by Andrew Murphy on 21 Jan 2024

Citation, DOI, disclosures and article data

Citation:

Jones J, Murphy A, Feger J, et al. Accessory ossicles. Reference article, Radiopaedia.org (Accessed on 10 Oct 2024) https://doi.org/10.53347/rID-24090

DOI:

https://doi.org/10.53347/rID-24090

Permalink:

https://radiopaedia.org/articles/24090

rID:

24090

Article created:

27 Jul 2013, Jeremy Jones ◉

Disclosures:

At the time the article was created Jeremy Jones had no recorded disclosures.

View Jeremy Jones's current disclosures

Last revised:

21 Jan 2024, Andrew Murphy ◉

Disclosures:

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

View Andrew Murphy's current disclosures

Revisions:

26 times, by 15 contributors - see full revision history and disclosures

Systems:

Musculoskeletal, Paediatrics

Sections:

Anatomy

Tags:

anatomical, ossicle

Synonyms:

Accessory ossicle

Accessory ossicles are secondary ossification centers that remain separate from the adjacent bone. They are usually round or ovoid in shape, occur in typical locations and have well-defined smooth cortical margins on all sides.

In most cases, they are congenital in origin, although they may occur as a result of trauma or local degenerative disease ².

The significance of accessory ossicles is their potential to mimic avulsion fractures.

accessory ossicles of the shoulder
- os acromiale
accessory ossicles of the elbow
accessory ossicles of the wrist
- os styloideum
- os hamuli proprium
- lunula
- os triangulare
- trapezium secondarium
- epilunate
accessory ossicles of the spine
- limbus vertebra
- accessory ossicle of the anterior arch of the atlas
- Oppenheimer ossicle
- os odontoideum
- persistent ossiculum terminale - Bergmann ossicle
- nuchal ligament sesamoid ossicle
accessory ossicles of the hip
- os acetabuli
accessory ossicles of the knee
accessory ossicles of the foot

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Accessory ossicles

Citation, DOI, disclosures and article data

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