Osteosarcoma.
D000293:Adolescent; D001859:Bone Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology; D002648:Child; D005260:Female; D006801:Humans; D007719:Knee Joint / Q000000981:diagnostic imaging; D008297:Male; D012516:Osteosarcoma / Q000000981:diagnostic imaging / Q000473:pathology; D011859:Radiography; D012785:Shoulder Joint / Q000000981:diagnostic imaging