Osteosarcoma
Osteosarcoma : Medicine. An aggressive malignant neoplasm arising from primitive transformed cells of mesenchymal origin (and thus a sarcoma) that exhibit osteoblastic differentiation and produce malignant osteoid. It is the most common histological form of primary bone cancer. Oncology, Tumour. Malignant tumour of bone (probably neoplasia of osteocytes). This entry appears with permission from the Dictionary of Cell and Molecular Biology. (An OSH glossary used in safety and health at work which is, adopted by ILO
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