Symptomatic Nonsyndromic Pancarpal Coalition: Report of a Rare Case and Review of the Literature.

Carpal coalition, the union of 2 or more carpal bones, can be congenital or acquired. Congenital, nonsyndromic carpal coalition usually presents in otherwise healthy individuals. The most common coalition is between the lunate and the triquetrum, followed by the capitate and the hamate. Pancarpal coalition, or coalition of all or most of the bones of the carpus, is an extremely rare finding and usually occurs as part of a syndrome. We present a nonsyndromic case of this rare entity, in a 28-year-old woman of West African descent, with symptoms of left hand and wrist pain. Our literature review revealed only 1 other reported case of isolated, nonsyndromic symptomatic pancarpal coalition.