DO_cancer_slim NCIthesaurus disease has location bone osteosarcoma conventional osteosarcoma ICDO:9195/3 UMLS_CUI:C1266166 SNOMEDCT_US_2025_09_01:128770002 A bone osteosarcoma that is characterized by the presence of osteoid extracellular matrix and that arises from the medullary portion of the bone. It affects the long bones and most commonly, the distal femur, proximal tibia, and proximal humerus. Pain with or without a palpable mass is the most common clinical presentation. DOID:7602 DOID:3378 Intracortical osteosarcoma Medullary Osteosarcoma conventional central osteosarcoma disease_ontology intracortical osteogenic sarcoma humerus tibia femur