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An osteosarcoma usually arising in the metaphysis of long bones. It is characterized by the presence of a cystic architecture with blood-filled spaces. The prognosis is similar to that of conventional osteosarcoma. Check for \'https://www.cancer.gov/about-cancer/treatment/clinical-trials/intervention/C3902\' active clinical trials using this agent. (\'http://ncit.nci.nih.gov/ncitbrowser/ConceptReport.jsp?dictionary=NCI%20Thesaurus&code=C3902\' NCI Thesaurus)
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