title: Myofibroblasts in parosteal osteogenic sarcoma.
mesh_terms: D006801:Humans; D008297:Male; D008334:Mandible / Q000648:ultrastructure*; D008339:Mandibular Neoplasms / Q000648:ultrastructure*; D008875:Middle Aged; D012516:Osteosarcoma / Q000648:ultrastructure*