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skos:definition |
MSH: A sarcoma originating in bone-forming cells, affecting the ends of long bones. It is the most common and most malignant of sarcomas of the bones, and occurs chiefly among 10- to 25-year-old youths. (From Stedman, 25th ed),CSP: malignant primary cancer of bone composed of a connective tissue stroma with evidence of malignant osteoid, bone and/or cartilage formation.,NCI: A malignant neoplasm usually arising from bone.,NCI: A malignant bone-forming tumor of osteocytes. Osteoid may be present only focally. This term may be used for small biopsy specimens for which adequate tissue is not present for definitive classification.,NCI: A usually aggressive malignant bone-forming mesenchymal tumor, predominantly affecting adolescents and young adults. It usually involves bones and less frequently extraosseous sites. It often involves the long bones (particularly distal femur, proximal tibia, and proximal humerus). Pain with or without a palpable mass is the most frequent clinical symptom. It may spread to other an
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