title: Pathology of childhood osteosarcoma.
mesh_terms: D001706:Biopsy; D001859:Bone Neoplasms / Q000145:classification / Q000401:mortality / Q000473:pathology*; D001842:Bone and Bones / Q000473:pathology; D002648:Child; D003937:Diagnosis, Differential; D006801:Humans; D009336:Necrosis; D009362:Neoplasm Metastasis; D012516:Osteosarcoma / Q000145:classification / Q000401:mortality / Q000473:pathology*; D011379:Prognosis