From the case: Os trigonum

X-ray
Lateral
Modality: X-ray (Lateral)

- “ An os trigonum is an accessory ossicle positioned posterior to the talus. It is best seen on lateral projections.  ”

Used in the following article:

  • Os trigonum - “ The os trigonum (plural: os trigona) is one of the ossicles of the foot and can be mistaken for a fracture.  It sits posterior to the talus on th...”

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