Presentation
Heel pain.
Patient Data
Age: 45 years
Gender: Male
From the case:
Os trigonum
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Lateral view of the ankle demonstrates a well-corticated bone fragment posterior to the left talus. Small calcaneal spur also is noted.
Case Discussion
This is consistent with an os trigonum, a common accessory bone found just posterior to the lateral tubercle of the posterior talar process.
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