Presentation
Wrist pain after a fall onto the wrist and shoulder.
Patient Data
Age: 40 years
Gender: Female
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Small rounded ossicle noted adjacent to the ulnar aspect of the distal trapezium. Otherwise unremarkable study.
From the case:
Os trapezium secondarium
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Red arrows indicating the small ossicle adjacent to the trapezium on the PA and oblique (semi-supinated) views of the wrist.
Case Discussion
An uncommon accessory ossicle, the os trapezium secondarium should not be confused with a fracture of the trapezium, or base of the 1st metacarpal or 2nd metacarpal.
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