A case report of giant cell rich osteosarcoma

Giant cell tumor of bone (GCTB) is a benign but locally aggressive bone tumor of young adults. It typically presents as a large lytic mass at the end of the epiphysis of long bones. Grossly it is comprised of cystic and hemorrhagic areas with little or no periosteal reaction(1) Giant cell tumor of talus is a rare entity. In contrast to GCT of long bones, most cases occur in a younger age group and tend to be multicentric(2)we report one case of giant cell rich osteosarcoma of talus bone in a 11 years old Iranian girl that presented with tenderness of the left ankle after a minor trauma with a tumoral lesion in Tc99m-MDP scan.biopsy of talus lesion reported a giant cell tumor with focal atypical chondroid and osteoid differentiation highly suggestive of a low grade giant cell rich osteosarcoma.

کلیدواژه ها:

Giant cell tumor ، bone ، osteosarcoma