[Isolated punched-out lesions of the carpus and pain of the wrist].

Intra-osseous ganglia are among the more frequent causes of cystic lesions of the carpus and may be responsible for diffuse pain, possibly be related to biological activity of the lesions, or when the ganglia opens into the adjacent joint. A CT-scan is useful to determine their exact location and the presence of a cortical defect. Although not this feature is completely established, they seem to arise de "novo" from the bone although their fluid content is reminiscent of those of soft-tissue ganglia. Surgical curettage with bone grafting is only indicated when pain persists despite a period of rest.