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Global Consensus on the Management of Primary Localized Chordoma
Stefano Radaelli1, Anna M Frezza2, Piero Fossati3,4
1Sarcoma Service, Department of Surgery, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Istituto Nazionale dei Tumori, Milan, Italy.
JAMA Oncology
|July 9, 2026
Summary
Updated guidelines for chordoma (a rare bone cancer) emphasize multidisciplinary care. Maximally safe surgery and high-dose radiotherapy at specialized centers are key for localized disease management and improved patient outcomes.
Area of Science:
- Oncology
- Orthopedic Surgery
- Radiation Oncology
Background:
- Chordoma is a rare, aggressive bone tumor with high recurrence and metastatic rates.
- Limited high-quality evidence exists due to its rarity and complexity.
- Previous international consensus guidelines were published in 2015.
Purpose of the Study:
- To update and expand the 2015 consensus recommendations for localized chordoma management.
- To provide current multidisciplinary guidance for pediatric and adult patients.
- To harmonize clinical practice and support shared decision-making.
Main Methods:
- A Global Chordoma Consensus Group meeting was held in June 2025.
- A comprehensive literature review of 305 articles informed structured discussions.
- Evidence levels and grades of recommendation were assigned.
Main Results:
- Management strategies are stratified by anatomical site: skull base, mobile spine, and sacrum.
- Key principles include treatment at experienced centers, maximally safe surgery, and high-dose conformal radiotherapy.
- Guidance covers diagnosis, surgical approaches, radiotherapy, systemic therapy, follow-up, and supportive care.
Conclusions:
- This global consensus statement offers updated multidisciplinary recommendations for primary localized chordoma.
- The guidance aims to improve clinical practice and patient outcomes.
- It identifies priorities for future collaborative research in chordoma.