Primary malignant mesenchymoma of bone. A new tumor entity.
D000293:Adolescent; D001859:Bone Neoplasms / Q000473:pathology*; D006801:Humans; D008080:Liposarcoma / Q000473:pathology; D008297:Male; D008637:Mesenchymoma / Q000145:classification* / Q000473:pathology; D012516:Osteosarcoma / Q000473:pathology; D013977:Tibia / Q000473:pathology