This research study is studying DNA biomarkers in tissue samples from patients with osteosarcoma. Studying samples of tumor tissue and blood from patients with cancer in the laboratory may help doctors learn more about changes the occur in DNA and identify biomarkers related to cancer. DNA analysis of tumor tissue may also help doctors predict how well patients will respond to treatment.
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Expression of genes
Timeframe: Baseline
Incidence of copy number abberations
Timeframe: Baseline
Incidence of mutations that occur at a clinically significant frequency
Timeframe: Baseline