Wrist: Carpal Boss

Clinical:  36 y/o male with wrist pain.
Dx:  Dorsal carpal boss extending off the dorsal and radial aspects of the proximal third metacarpal; likely incidental.

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References:

1. Conway W, Destouet J, Gilula L, Bellinghausen H, Weeks P.  Radiology: 1985 – vol. 156, pp. 29-31.