Presentation
Trauma to the left foot with suspected foreign body
Patient Data
Age: 8 years
Gender: Male
From the case:
Köhler disease
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There is a radiopaque foreign body seen lateral to the middle and distal phalanges of left fourth toe with no definite underlying fractures seen.
Partial fragmentation and flattening are seen involving the upper half of the left navicular bone.
Case Discussion
Köhler disease represents osteonecrosis (avascular necrosis) of the navicular bone in a child.
The disease may be asymptomatic or presents with mid-foot pain.