Educational Content: This article is for informational purposes only and does not constitute medical advice. Always consult a healthcare provider for diagnosis and treatment.
Definition of Osteosarcoma
Medically reviewed by Dr. Otari Nergadze, Neurosurgeon | Updated: January 2026
Osteosarcoma: A cancer of the bone that is most common in adolescents and young adults. Treatment involves surgery, usually followed by chemotherapy or radiation. The site of the tumor is the most important prognostic factor, because it determines whether the tumor can be surgically removed. Also known as osteogenic sarcoma.
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