A rare case of extensive primary meningeal osteosarcoma in childhood

摘要

A 6-year-old girl presented with a 3-year history of convulsions. She had received Chinese herb therapy without radiation. Radiologic examinations showed a giant calcified lesion in the left cerebral hemisphere (figures 1 and 2). A microsurgical resection revealed an extensive ill-defined calcified lesion, firmly attached to the dura mater without bone involvement. Histopathologic examination disclosed meningeal osteosarcoma, likely primary. Primary meningeal osteosarcomas are rare tumors with only 4 cases reported in pediatric patients.(1,2) The delay in appropriate treatment allowed larger growth than usual before detection and intervention.