osteosarcoma canine osteosarcoma https://github.com/monarch-initiative/mondo/issues/5252 https://github.com/monarch-initiative/mondo/issues/7075 MONDO:0700140 osteosarcoma, dog NCIT:C120045 OMIA:001441-9615 An osteosarcoma of mesenchymal origin in a dog. It is the most common bone cancer in dogs, most often developing in the limbs of large or giant breed dogs. The morphologic and biologic behavior of canine osteosarcomas is similar to that of human osteosarcomas. canine sarcoma osteosarcoma, non-human animal