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← Osteosarcoma and Undifferentiated Pleomorphic Sarcoma of Bone

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Treatment of Osteosarcoma and UPS of Bone With Metastatic Disease at Diagnosis

Source: Osteosarcoma and Undifferentiated Pleomorphic Sarcoma of Bone Treatment (PDQ®)–Health Professional Version, National Cancer Institute.

Source updated: December 2, 2024 · Captured 2026-09-09.

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Approximately 20% to 25% of patients with osteosarcoma present with clinically detectable metastatic disease. For patients with metastatic disease at initial presentation, roughly 20% will remain continuously free of disease, and roughly 30% will survive 5 years from diagnosis.[1]

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The lungs are the most common site of initial metastatic disease.[2] Patients with metastases limited to the lungs have a better outcome than do patients with metastases to other sites or to the lungs combined with other sites.[1,3]

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Preserved source evidence · Not medical advice