Presentation
Chronic lateral foot pain.
Patient Data
Age: 25 years
Gender: Male
From the case:
Os vesalianum pedis
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There is an ossicle articulating with both the base of the fifth metatarsal and the cuboid bone.
The ossicle displays well corticated edge and separated from the metatarsal by a radiolucent line of constant width.
Case Discussion
An os vesalianum is a rare accessory ossicle of the foot, much less common than os peroneum or a non-united avulsion fracture of the 5th metatarsal styloid. Although asymptomatic, it may become symptomatic occasionally, causing lateral foot pain and requiring surgical excision1.