Giant Cell Tumor of Bone in the Talus Treated by Extended Curettage and Synthetic Bone SubstituteReport of a Rare Case.

Giant cell tumor of bone is extremely rare in the talus and is usually observed in the third decade of life. Herein, we report a case of a 19-year-old male with a giant cell tumor of bone in the talus mimicking a simple bone cyst that was treated by intralesional curettage and, for the first time, bone grafting with a synthetic bone substitute. The patient had no evidence of recurrence at 7-year follow-up but did have non-progressing mild degenerative joint disease and slightly limited range of movement at the ankle joint.