Malignant Tumors
Chondrosarcoma of the Jaws
Malignant cartilage-producing mesenchymal tumour; in the jaws it favours the anterior maxilla and behaves aggressively despite indolent histology.
§ figuresFigures (4)
Fig. 1Metastatic chondrosarcoma in the lower lip of a 76-year-old female. Primary tumor at the femur.
“Metastatic chondrosarcoma at the lower lip” · Maria Sieglinda von Nudeldorf · CC BY-SA 4.0 · Wikimedia Commons
Verified open-access images only, reproduced for education under their stated licences · no AI-generated or illustrative artwork · Chondrosarcoma of the Jaws figures pending faculty review.
§ overviewOverview
Malignant tumour of mesenchymal cells producing a cartilaginous matrix.
§ icdICD Classification
C41.0/C41.1
§ etiologyEtiology
- 01Primary (de novo)
- 02Secondary: from enchondroma, osteochondroma, Ollier / Maffucci syndromes
- 03Post-irradiation
§ epidemiologyEpidemiology
Head & neck ≈ 5–10% of chondrosarcomas; maxilla > mandible; adults 30–60 y.
§ clinicalClinical Features
- 01Painless swelling of anterior maxilla or condyle
- 02Loose teeth, nasal obstruction, proptosis
- 03Slow but relentless growth
§ differentialDifferential Diagnosis
- 01Osteosarcoma
- 02Chondroma
- 03Chondromyxoid fibroma
- 04Ameloblastoma
§ histopathHistopathology
- 01Lobules of atypical chondrocytes in hyaline/myxoid matrix
- 02Binucleate lacunar cells
- 03Grade I–III based on cellularity and pleomorphism
§ radiographicRadiographic Features
- 01Poorly defined radiolucent-radiopaque lesion
- 02'Snowflake' or 'popcorn' calcifications
- 03Widening of PDL space (Garrington sign — shared with osteosarcoma)
§ investigationsInvestigations
- 01CT (matrix calcification) and MRI (soft-tissue extent)
- 02Incisional biopsy
- 03Chest CT for metastases
§ treatmentTreatment
- 01Wide surgical resection with clear margins (mainstay)
- 02Radiotherapy — limited efficacy; used for unresectable/positive margins (proton beam)
- 03Chemotherapy generally ineffective except mesenchymal variant
§ complicationsComplications
- 01Local recurrence common if margins positive
- 02Distant metastases (lung) in high-grade
§ prognosisPrognosis
5-yr survival: Grade I ≈ 80%, Grade III ≈ 30%. Jaw location worse than long bones due to resection limits.
§ examKey Examination Points
- 01Anterior maxilla mass in adult — image with CT & MRI
- 02Biopsy before definitive surgery
§ revisionQuick Revision Summary
- 01Cartilage-producing malignancy · wide excision · radioresistant
§ vivaBDS Viva Questions
- 01Chondrosarcoma vs osteosarcoma?
- 02What is Garrington sign?
- 03Role of chemotherapy?
§ mcqsMCQs — Assessment (3)
Question 1
Preferred treatment:
Question 2
Typical calcification pattern:
Question 3
Most common jaw site:
§ evidenceReferences & Evidence
Current Classification
WHO Classification of Head and Neck Tumours
5th Edition — Volume 9
WHO Classification of Tumours Editorial Board · 2022
The authoritative international classification of head and neck, odontogenic and salivary gland tumours. Current terminology on this site follows this edition.
Evidence summary
Highest level of evidence linked to this page: WHO / Official Classification.
- L1 · Classification — 2
- L3 · Systematic review — 1
- L6 · Textbook — 3
2 linked sources were published from 2024 onwards. Where guidance is limited or contested, rely on the higher-level sources above rather than this summary. Educational use only — not a substitute for clinical judgement.
Content last reviewed
September 2026
Evidence last reviewed
September 2026
Next scheduled review
September 2027
Review status
EVIDENCE REVIEWED
Search latest PubMed evidence
Last literature search: 7 September 2026
Current Classification
WHO Classification of Tumours Editorial Board. IARC / World Health Organization · 2022
The authoritative international classification of head and neck, odontogenic and salivary gland tumours. Current terminology on this site follows this edition.
IARC / WHO. IARC · 2022
Continuously updated online edition of the WHO head and neck tumour classification.
Systematic Reviews & Meta-Analyses
Zhang L, Guo Y, Sumita Y et al.. International journal of oral and maxillofacial surgery · 2026 · 55(1):10-19
Systematic review of chemotherapy and prognosis in jaw osteosarcoma.
Histopathology References
Barnes L. CRC Press · 2008
Detailed histopathological reference for head and neck diagnostic criteria.
Textbook References
Neville BW, Damm DD, Allen CM et al.. Elsevier · 2024
Standard reference textbook of oral and maxillofacial pathology used throughout this atlas.
Rajendran R, Sivapathasundharam B. Elsevier · 2020
Undergraduate and postgraduate oral pathology textbook widely used in BDS and FCPS curricula.
Additional sources cited on this page
- WHO Soft Tissue & Bone Tumours 2020
Draft — pending faculty review. Educational use only; verify against current guidelines and primary sources before clinical application.