Presentation
Foot pain.
Patient Data
Age: 20 years
Gender: Female
From the case:
Os tibiale externum type II and III
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An ossicle is present adjacent to the medial aspect of the left navicular bone, with a similar elongation of the medial process of the right navicular which has medullary continuity.
From the case:
Os tibiale externum type II and III
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The findings are outlined.
Case Discussion
Typical example of both a type II (>7mm) and type III (fused ossice/cornuate process) os tibiale externum (os naviculare). Type II's may occasionally be associated with pain due to motion and irritation at the fibro-osseous joint between the ossicle and bone.