Extract
Mesenchymal hamartomas are rare, benign osseous tumors that
typically involve the rib cage and present during the first year of
life1-9.
Aggressive growth is not part of the natural history, and surgical excision is
generally curative. Fewer than fifty cases have been reported in the
literature to date. To our knowledge, there have been no reports of this tumor
originating in the cervical spine.The lesion appears expansile on radiographs and often causes deformity of
the chest wall and ribs. It may be lobulated, is primarily cartilaginous, and
may contain bone trabeculae. Although most of these lesions are benign,
malignant transformation has been
reported5.