The rare case of giant cell tumor occuring in the axial skeleton after 15 years of follow-up: Case report.

The majority of giant cell tumors (GCTs) occur in the ends of the long bones. The presence of more than one GCT in the axial skeleton is rare. A GCT is capable of remaining clinically latent following treatment and becoming active a number of years later. We report an extremely rare case of GCT occurring in the axial skeleton, involving the sacrum, thoracic spine and parieto-occipital skull in more than 15 years of follow-up.