Retroperitoneal osteosarcoma in a dog.
D000818:Animals; D004283:Dog Diseases / Q000473:pathology*; D004285:Dogs; D005260:Female; D012516:Osteosarcoma / Q000473:pathology / Q000662:veterinary*; D012186:Retroperitoneal Neoplasms / Q000473:pathology / Q000662:veterinary*