title: Extraskeletal osteogenic sarcoma in a guinea pig--.
mesh_terms: D000818:Animals; D005260:Female; D006168:Guinea Pigs; D009999:Ossification, Heterotopic / Q000175:diagnosis / Q000662:veterinary*; D012516:Osteosarcoma / Q000175:diagnosis / Q000662:veterinary*; D012376:Rodent Diseases / Q000175:diagnosis*