Bisphosphonate treatment as a safe choice for treating lung metastases of recurrent giant cell tumor of bone

Giant cell tumor (GCT) accounts for 5% of all primary bone tumors and 20% of benign skeletal tumors. This case report presents the case of a 17-year-old female with a recurrent giant cell tumor and lung metastases. The patient received bisphosphonate therapy instead of surgery. The use of zoledronic acid for lung metastases from GCT may have conservatively improved clinical symptoms and radiological assessments can be achieved.