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Ankle lateral malleolus avulsion fracture with os subfibulare

Case contributed by Bruno Di Muzio
Diagnosis certain


Twisted right ankle.

Patient Data

Age: 21-year-old
Gender: Male

Small bone fragment at the inferior portion of the lateral malleolus is consistent with an avulsed fracture. Os sub fibulare is noted (anatomical variant). No other fractures were seen. Local soft tissue was swollen.

Case Discussion

Tiny bone avulsed fracture from the distal fibula and an anatomical variant, os subfibulare

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