Osteosarcoma of the craniofacial bones. A clinico-pathological study

Area of Science:

• Oncology
• Surgical Pathology
• Head and Neck Surgery

Background:

• Osteosarcoma is a primary malignant bone tumor.
• Craniofacial osteosarcomas represent a small subset of skeletal osteosarcomas.
• Understanding the epidemiology and treatment of these rare tumors is crucial.

Purpose of the Study:

• To review and analyze cases of craniofacial osteosarcoma.
• To determine the demographic, clinical, and prognostic factors.
• To evaluate treatment outcomes and identify factors influencing survival.

Main Methods:

• Retrospective review of 34 craniofacial osteosarcoma cases over 19 years.
• Analysis of patient demographics, tumor location, histology, treatment, and outcomes.
• Statistical comparison of survival rates based on tumor site and patient age.

Main Results:

• Craniofacial osteosarcomas constituted 6.2% of all skeletal osteosarcomas.
• Mean age of onset was 30.9 years; mandible (56%) was the most common site.
• Male predominance in maxillary tumors; equal incidence in mandibular tumors. Histology did not impact prognosis. Local recurrence, especially for maxillary tumors, led to morbidity and mortality. Metastasis was rare. No significant survival difference between mandibular and maxillary tumors or age groups (<20 vs. >20 years).

Conclusions:

• Radical surgery with wide margins is the most effective treatment for craniofacial osteosarcoma.
• Local recurrence is a significant challenge, particularly for maxillary tumors.
• Survival is not significantly affected by tumor location (mandible vs. maxilla) or age.