Term Name:	osteosarcoma
Synonyms:	bone tissue neoplasm, Osteogenic sarcoma, osteoid sarcoma, Skeletal sarcoma
Definition:	A bone sarcoma that is located_in bone that has_material_basis_in cells of mesenchymal origin. It usually involves bones and less frequently extraosseous sites. It often involves the long bones (particularly distal femur, proximal tibia, and proximal humerus).
Ontology:	Human Disease [DOID:3347]   ( DOID:3347 )