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130141 Anatomy

A 45-year-old man visits the outpatient clinic after a digit of his left hand was injured when a door was slammed on his hand. A superficial cut on his middle finger has been sutured, but functional deficits are observed in the finger: The proximal interphalangeal joint is pulled into constant flexion, whereas the distal interphalangeal joint is held in a position of hyperextension. What is the most likely diagnosis?

AMallet finger
BBoutonniere deformity
CDupuytren's contracture
DSwan-neck deformity
Anatomy
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