persistent ossiculum terminale

Os

odontoideum • Variant anatomy of the odontoid process of C2 - Ganzer Fall bei Radiopaedia

Skalski, M. Variant anatomy of the odontoid process of C2. Case study, Radiopaedia.org. (accessed on 24 Oct 2022) https://doi.org/10.53347/rID-50612 • CC by-nc-sa 3.0 (modified)

Persistent

ossiculum terminale • Ossiculum terminale - Ganzer Fall bei Radiopaedia

Nemattalla W, Ossiculum terminale. Case study, Radiopaedia.org (Accessed on 16 Feb 2023) https://doi.org/10.53347/rID-8875 • CC by-nc-sa 3.0 (modified)

Persistent

ossiculum terminale • Persistent ossiculum terminale - Ganzer Fall bei Radiopaedia

Knipe H, Persistent ossiculum terminale. Case study, Radiopaedia.org (Accessed on 16 Feb 2023) https://doi.org/10.53347/rID-25744 • CC by-nc-sa 3.0 (modified)

Hier werden Begriffe / Krankheitsbilder genannt, die ähnlich sind oder klingen, aber nicht das Gleiche sind.

nicht verwechseln mit: Os odontoideum

Radiopaedia • CC-by-nc-sa 3.0 • de

The ossiculum terminale appears as a secondary ossification center of the dens between 3-6 years and normally fuses by 12 years. Failure of fusion results in a persistent ossiculum terminale (also called Bergmann's ossicle or ossiculum terminale of Bergmann) and is considered a normal anatomical variant of the axis.

It lies above the alar ligament and is therefore considered to be stable and it very rarely causes symptoms.