Os styloideum
Citation, DOI, disclosures and article data
Citation:
Tunchon D, Elfeky M, Weerakkody Y, et al. Os styloideum. Reference article, Radiopaedia.org (Accessed on 14 Jan 2025) https://doi.org/10.53347/rID-54802
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rID:
54802
Article created:
1 Aug 2017,
David Tunchon
Disclosures:
At the time the article was created David Tunchon had no recorded disclosures.
View David Tunchon's current disclosures
Last revised:
Disclosures:
At the time the article was last revised Mostafa Elfeky had no financial relationships to ineligible companies to disclose.
View Mostafa Elfeky's current disclosures
Revisions:
7 times, by
7 contributors -
see full revision history and disclosures
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Sections:
The os styloideum is an accessory ossicle of the wrist, situated between the 2nd and 3rd metacarpal bases.
Radiographic appearance
Given its position next to the 2nd and 3rd metacarpal bases, it may be mistaken for a fracture, though this should not occur if an adequate lateral radiograph is assessed 2.
Related pathology
It may be implicated in degenerative conditions such as osteoarthritis with localized pain occurring at this region 2.
Differential diagnosis
References
- 1. R. Shane Tubbs, Marios Loukas, Mohammadali M. Shoja. Bergman's Comprehensive Encyclopedia of Human Anatomic Variation. ISBN: 9781118430354
- 2. Stein JM, Cook TS, Simonson S, Kim W. Normal and variant anatomy of the wrist and hand on MR imaging. Magnetic resonance imaging clinics of North America. 19 (3): 595-608; ix. doi:10.1016/j.mric.2011.05.007 - Pubmed
Incoming Links
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skeleton of the upper limb
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- long radiolunate ligament
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hand joints
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- terminal branches
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