Carpal coalition


 * Congenital coalition of carpal bones is a common anomaly that is usually discovered on imaging obtained for unrelated reasons.
 * The lunate and triquetrum are most likely to show such coalition.
 * It is reported twice as frequently in women.
 * It may occur as an isolated entity or as part of a syndrome and may show a familial pattern.
 * It is caused by a failure of separation or segmentation of the carpal bones.

Diagnostic Findings

 * Carpal bone fusion