Mallet finger

Case contributed by Hani M. Al Salam
Diagnosis certain

Presentation

Trauma

x-ray
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Fracture through the proximal articular surface of the fourth distal phalanx. 

x-ray
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Zoomed image of the fracture. 

Case Discussion

Mallet finger is a triangular avulsion fragment at the extensor aspect of the distal phalanx at the DIP joint. 

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