Os epilunate


The patient was being evaluated for wrist trauma. The accessory ossicle was noted incidentally. The patient did not have any symptoms in relation to the accessory ossicle. 

Os epilunate is exceedingly rare 1. It is located dorsally, along the dorsal surface of the lunocapitate articulation.

Accessory ossicles in the wrist can be a source of pain or can be misinterpreted as fracture or a loose body.   

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