Presentation
Vague pain in the wrist. No history of trauma
Patient Data
A well-corticated, oblong osseous structure is visible in the dorsal wrist, between the scaphoid, the trapezoid and the capitate bones, consistent with an accessory ossicle - os centrale carpi. Some degenerative changes are visible in its most anterior part, adjacent to the scaphoid; apart from that no visible abnormalities of the ossicle, no bone marrow edema. Normal shape of the scaphoid.
Annotated images of the os centrale carpi.
Case Discussion
Os centrale carpi is an uncommon accessory ossicle of the wrist. It is usually asymptomatic, but sometimes it causes pain or clicking. In this case, most likely it was an incidental finding, as the site of the patient's pain didn't match the ossicle location.
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