From the case: Ossiculum terminale

CT
Coronal bone window
Modality: CT (bone window)

- “ Four entities should be considered: Os odontoideum. Ossiculum terminale.  Nonunion of dens fracture. Nontraumatic unfused odontoid synchondro...”

Used in the following article:

  • Odontoid fracture - “ Odontoid process fracture, also known as the peg or dens fracture, occurs where there is a fracture through the odontoid process of C2. Pathology...”
  • Os odontoideum - “ Os odontoideum (plural: ossa odontoidea) is an anatomic variant of the odontoid process of C2 and needs to be differentiated from persistent ossic...”
  • Persistent ossiculum terminale - “ 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...”

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