Malignant Tumors
Osteosarcoma of the Jaw
Malignant mesenchymal tumour producing osteoid; jaw osteosarcoma presents later than long-bone counterparts.
§ overviewOverview
Malignant mesenchymal tumour producing osteoid; jaw osteosarcoma presents later than long-bone counterparts.
§ epidemiologyEpidemiology
3rd–4th decade for jaw (vs 2nd decade for long bones).
§ clinicalClinical Features
- 01Rapidly growing swelling
- 02Paraesthesia (numb chin syndrome — mandibular)
- 03Loose teeth
§ histopathHistopathology
- 01Malignant osteoblasts producing osteoid — osteoblastic, chondroblastic, fibroblastic subtypes
§ radiographicRadiographic Features
- 01Symmetrical widening of PDL space (Garrington's sign)
- 02Sunburst / sunray periosteal reaction
- 03Codman's triangle
§ treatmentTreatment
- 01Radical resection with wide margins + neoadjuvant / adjuvant chemotherapy
- 02Post-op radiotherapy for positive margins
§ prognosisPrognosis
5-year survival 40–60% for jaw osteosarcoma.
Draft — pending faculty review. Educational use only; verify against current guidelines and primary sources before clinical application.