Houston Methodist. Leading Medicine

Hand FAQ


My niece was diagnosed with carpal boss. I've heard of carpal tunnel, but not carpal boss. What is that?


Carpal boss is a condition that affects the wrist, just as carpal tunnel does. However, carpal boss does not involve the tunnel that protects the nerve that runs from the arm to the wrist. Instead, carpal boss is a growth that is found in the joint between the first long bone of the finger and the wrist. This can be caused by either a degeneration of the joint or trauma to the area. Carpal boss causes pain and swelling to the wrist and if it interferes with daily activities, surgery to remove the growth is the usual treatment. John T. Capo, MD, Nathaniel S. Orillaza, MD, Philip K. Lim, BS. Carpal Boss in an Adolescent: Case Report. In Journal of Hand Surgery. Dec. 2009. Vol. 34. No. 10. Pp. 1808 to 1810.

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