Presentation
Ankle pain
Patient Data
Age: 75 years
Gender: Male
From the case:
Os tibiale externum and os supranaviculare
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Large superimposed naviculare accessory and a small os supranaviculare up and between talus and naviculare are clearly depicted.
Case Discussion
The tibiale externum was mistakenly considered to be a fracture. As with any accessory bone, knowing their existence is a priority. If the corticated edges of the radiolucent line passing through the region of concern can be defined then it is not a fracture.
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