Giant cell tumor of the humeral head treated by denosumab: Implication to shoulder surgeons

Ka Hei Leung1, Albert Ying Lee Lam1, Kenneth Wai Yip Ho1

  • 1Department of Orthopaedics and Traumatology, Division of Anatomical Pathology, Queen Mary Hospital, Hong Kong.

Insights

Giant cell tumors can cause significant bone destruction. Treatment with denosumab, a receptor activator of nuclear factor κB ligand antagonist, followed by surgery, successfully salvaged a humeral head tumor, though surgical challenges exist.

Area of Science:

  • Orthopedics
  • Oncology
  • Pharmacology

Background:

  • Giant cell tumor (GCT) is a common benign bone neoplasm.
  • Extensive bony destruction by GCT presents complex treatment challenges.
  • Receptor activator of nuclear factor κB ligand (RANKL) inhibitors are emerging as a therapeutic option.

Observation:

  • A case of GCT in the humeral head causing extensive bony destruction is presented.
  • The patient was initially treated with denosumab, a RANKL inhibitor.
  • Subsequent surgical intervention was performed after denosumab treatment.

Findings:

  • The combined treatment approach successfully salvaged the shoulder joint.
  • Denosumab treatment prior to surgery may alter tumor characteristics.
  • Potential surgical difficulties were encountered in the post-denosumab treatment setting.

Implications:

  • Denosumab offers a potential neoadjuvant treatment for GCT, facilitating joint salvage.
  • Surgeons must be aware of potential intraoperative challenges when operating on denosumab-treated GCT.
  • Further research is warranted to optimize surgical techniques for GCT patients treated with RANKL inhibitors.