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Mallet finger

Case contributed by Salem Bauones
Diagnosis certain

Presentation

Rugby player.

Patient Data

Age: 30 years
Gender: Male
Photo

Bruising and swelling over the dorsal aspect of the left little finger.

x-ray

Avulsion-fracture of the base of the distal phalanx of the left little finger on its dorsal aspect.

ultrasound

Longitudinal US images demonstrate avulsion of the bony insertion of the extensor digitorum longus tendon at the base of distal phalanx (P3) of the left little finger.

Note minor hematoma is seen between the P2 and the extensor digitorum tendon distally.

Case Discussion

Findings are compatible with Mallet finger in a rugby player.

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