Presentation
Finger trauma.
Patient Data
Age: 35 years
Gender: Male
From the case:
Mallet finger
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Flexion deformity at 5th distal interphalangeal joint. No fracture.
From the case:
Mallet finger
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There is a hypoechoic soft tissue thickening abutting dorsal aspect of middle phalanx.
Normal lateral slips of extensor tendon is not visualized.
There is no avulsion fracture at base of distal phalanx on dorsal aspect.
Central slip of extensor tendon is normal; seen attached to middle phalanx base.
Metacarpo-phalangeal joint - No effusion
Proximal interphalangeal joint - No effusion
Distal interphalangeal joint - No effusion
Case Discussion
Findings suggest tear of lateral slips of extensor tendon without avulsion fracture of distal phalanx.
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