From the case: Os odontoideum

Os odontoideum (p...
Coronal non-contrast
Os odontoideum (posterior view)
Modality: CT (non-contrast)

- “ Instability of the os odontoideum is demonstrated within the range of  motion. On the extension view the anterior arch of C1 is positioned directl...”

Used in the following article:

  • 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...”
  • Odontoid fracture - “ Odontoid process fracture, also known as a peg or dens fracture, occurs where there is a fracture through the odontoid process of C2. Pathology ...”

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