Presentation
History of ankle twisting.
Patient Data
Age: 8 years
Gender: Male
From the case:
Os subtibiale
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Well-corticated bony fragment adjacent to the medial malleolus represents os subtibiale.
Case Discussion
Os subtibiale is a rare accessory ossicle and represents a normal anatomical variation this is found incidentally on ankle imaging. It is usually asymptomatic and as with all accessory ossicles, it must not be confused for a fracture especially in the trauma setting.
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