Cyamella

Last revised by Craig Hacking on 14 May 2024

Citation, DOI, disclosures and article data

Citation:

Skalski M, Hacking C, Baba Y, et al. Cyamella. Reference article, Radiopaedia.org (Accessed on 16 May 2024) https://doi.org/10.53347/rID-25083

DOI:

https://doi.org/10.53347/rID-25083

Permalink:

https://radiopaedia.org/articles/25083

rID:

25083

Article created:

3 Oct 2013, Matt Skalski ◉

Disclosures:

At the time the article was created Matt Skalski had no recorded disclosures.

View Matt Skalski's current disclosures

Last revised:

14 May 2024, Craig Hacking ◉

Disclosures:

At the time the article was last revised 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

Revisions:

22 times, by 13 contributors - see full revision history and disclosures

Systems:

Musculoskeletal

Sections:

Anatomy

Tags:

stub, variant, variants

Synonyms:

Popliteal sesamoid bone
Sesamoid bone of the popliteus muscle

A cyamella is a rare sesamoid bone that exists as a normal variant within the popliteus tendon, characteristically located at the lateral aspect of the distal femur in the popliteal groove.

Cyamella is best seen on the AP view of plain radiograph as opposed to the fabella, which is located in the lateral head of the gastrocnemius and best appreciated on the lateral view.

It is seen more commonly in less advanced primates ³ and in a high proportion of dogs ⁴.