Presentation
Penetrating injury by wood 6 days previously.
From the case:
Foreign body in foot
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Frontal
No retained radio-opaque foreign body is demonstrated.
From the case:
Foreign body in foot
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1.5 cm long linear hyperechoic structure in subcutaneous plane on dorsal aspect of the foot, in keeping with a foreign body.
Case Discussion
Not all foreign bodies are radio-opaque, as in this case where the X-ray is unremarkable. The 1.5 cm foreign body is however clearly seen on ultrasound. It is therefore important not to be falsely reassured by a negative X-ray in these cases.
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