Presentation
Fall. Painful wrist.
Patient Data
Age: 22
Gender: Male
From the case:
Os triangulare
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Well corticated bony fragment distal to the ulna fovea, adjacent to the ulna styloid. Most consistent with an accessory ossicle - os triangulare.
From the case:
Os triangulare
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Annotated image thanks to Dr Ian Bickle.
Case Discussion
Accessory ossicles are an important differential diagnosis to fractures, especially in the wrist where more than 20 have been documented.
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