Osteosarcoma of the jaw bones.

Area of Science:

• Orthopedics
• Oncology
• Pathology

Background:

• Osteosarcoma (OS) is the most common primary malignant bone neoplasm, representing at least 30% of all primary bone tumors.
• OS incidence peaks in the second decade of life, is rare before age 5, and uncommon after age 50.
• The etiology and pathogenesis of osteosarcoma remain largely unknown, necessitating careful histological examination for diagnosis.

Purpose of the Study:

• To review the current understanding of osteosarcoma (OS) in bone, focusing on its varied presentations and treatment efficacy.
• To highlight the diagnostic challenges posed by the diverse morphological patterns of OS.
• To emphasize the improved prognosis of jaw osteosarcoma with modern therapeutic approaches.

Main Methods:

• Review of clinical, radiographic, and histopathologic findings in osteosarcoma.
• Analysis of treatment modalities including surgery and chemotherapy.
• Evaluation of recurrence rates and prognostic factors.

Main Results:

• Osteosarcoma exhibits significant heterogeneity, with distinct clinical and histological subtypes.
• Histological diagnosis can be challenging due to varied morphological patterns.
• Surgery alone for general skeletal OS has a high recurrence rate (90%).

Conclusions:

• Adjuvant and neoadjuvant chemotherapy significantly improve the prognosis for osteosarcoma, particularly in the jaw bones.
• Accurate histological examination is crucial for diagnosing diverse osteosarcoma presentations.
• Multimodal treatment strategies are essential for managing osteosarcoma effectively.